
Korean: 
여기에 재미있는
상황이 있습니다
크기가 일정한
자기장이 있고
이 고리 도선의 표면에
수직한 방향으로 나오고 있습니다
자기장의 세기는
표면의 모든 곳에서
'B' 입니다
이 고리 도선에서
특별한 것은
오른쪽 도선을
움직일 수 있다는 것입니다
오른쪽으로
굴러갈 수 있는
원통 모양의
도선을 생각하면 됩니다
도선의 속도의 크기는
'v'로 나타내겠습니다
그리고 이 원통의 길이는
'L' 이라고 하겠습니다
여기서 우리는 자속이
어떻게 변하는지
살펴볼 것입니다
표면을 뚫고 나오는
이 자속에는
왜 변화가 생길까요?
만약 여기의 원통 도선이
오른쪽 방향으로
속력 'v'로 움직일 때를
생각해 보겠습니다
속력의 단위는 m/s 등이
될 수 있습니다
속력의 단위는 m/s 등이
될 수 있습니다
여기서 자기장의 크기는
일정하지만

Czech: 
Mám tu připravený zajímavý pokus.
Mám konstantní magnetické pole
vystupující kolmo z povrchu této smyčky.
Velikost magnetického pole
v každém bodě povrchu bude B.
Nejzajímavější je ale to,
že pravá část smyčky je pohyblivá.
Můžeme si jí představit jako váleček,
kterým můžeme pohybovat doprava
velikostí rychlosti malé v.
Délka válečku je L.
Už vidíte, že se nám
bude měnit magnetický tok.
Jak ke změně magnetického
toku touto plochou dojde?
Tohle se pohybuje doprava rychlostí v,
může mít libovolné jednotky,
třeba metry za sekundu.
Přestože je magnetické pole konstantní,

Bulgarian: 
Тук имам
интересна постановка.
Имам магнитно поле,
което е постоянно
и се движи право навън
от повърхността на този контур.
Големината на
магнитното поле
във всяка точка от повърхността
ще е "В".
Интересното тук е,
че тази верига, която имаме –
дясната част на тази верига
може да се движи.
Можеш да си представиш,
че това е цилиндър,
който може да се
търкаля надясно,
а големината на
неговата скорост,
ще кажем,
че е малко v.
И този цилиндър,
да кажем, че има дължина L.
Като имаме това,
можеш да видиш,
че ще имаме промяна
в магнитния поток.
Защо ще имаме промяна
в магнитния поток,
или промяна в магнитния поток
през повърхността?
Ако това нещо
се движи надясно,
когато неговата скорост
е v,
може да са всякакви мерни единици,
метри в секунда или други.
Въпреки че самото магнитно поле
е постоянно,

Thai: 
ผมมีชุดการทดลองที่น่าสนใจตรงนี้
ผมมีสนามแม่เหล็กคงที่
และมันพุ่งตรงออกจากผิวของวงนี้
ขนาดของสนามแม่เหล็ก
ที่จุดใดๆ ของผิวจะเท่ากับ B
สิ่งที่น่าสนใจตรงนี้คือว่า ลูปนี้ที่เรามี
ส่วนนี้ของลูปเลื่อนได้
คุณนึกภาพว่ามันเป็นทรงกระบอก
ที่กลิ้งไปทางขวาได้
และขนาดความเร็วของมัน
เราจะเรียกมันว่า v พิมพ์เล็ก
และทรงกระบอกนี้ สมมุติว่ามันยาว L
จากนั้น คุณเห็นได้ว่าเราจะ
มีการเปลี่ยนแปลงฟลักซ์แม่เหล็ก
ทำไมเราถึงมีการเปลี่ยนแปลงฟลักซ์แม่เหล้ก
หรือการเปลี่ยนแปลงของฟลักซ์แม่เหล็ก
ผ่านผิวนี้?
ถ้าสิ่งนี้เคลื่อนที่ไปทางขวา
เมื่ออัตราเร็วของมันเป็น v
มันมีหน่วยอะไรก็ได้ เมตรต่อวินาที
หรืออะไรก็ช่าง
ถึงแม้ว่าสนามแม่เหล็กเอง

English: 
- [Voiceover] I have an
interesting set up over here.
I have a magnetic field that is constant,
and it's going straight out
of the surface of this loop.
The magnitude of the magnetic field
at any point of the
surface is going to be 'B'.
What's interesting here
is this loop that we have,
This right part of the loop is movable.
You can imagine it's a cylinder
that can roll to the right,
and the magnitude of it's velocity,
we're going to say is lowercase 'v'.
And this cylinder, lets
say it has length 'L'
Given that, you can see that we're going
to have a change in magnetic flux.
Why are we gonna have a
change in magnetic flux,
or a change in magnetic
flux through the surface?
Well if this thing is moving to the right,
when it's speed is 'v'
it can be any units, meters per second,
or whatever it is.
Even though the magnetic field itself is

English: 
constant, you're actually
going to be changing the area,
the area that is, I guess
you could, contained by
this loop, and so that is going to
give us a change in flux
And if you have a change in flux that is
going to induce an electromotive force,
or it's going to induce
a voltage in this loop
which will cause a current to flow.
Let's think about what
that electromotive force
that's going to be induced is going to be.
I'm just gonna rewrite
Faraday's law right over here.
Faradays law: negative 'N' times
our change in flux, and we're talking
about our change in flux over change in,
let me write that a little bit neater,
our change in flux over change in time.
The 'N' is the number of
loops we're talking about.
So in this case, 'N'
is just going to be one
and the negative, I've already complained
a little bit about in previous videos.

Czech: 
měníme rovnoměrně obsah
plochy ohraničené touto smyčkou,
což způsobí změnu toku.
Kde je změna toku, tam se bude
indukovat elektromotorické napětí,
a to napětí způsobí,
že tudy poteče proud.
Zamysleme se nad tím,
jaké to elektromotorické napětí bude.
Napíšu sem Faradayův zákon.
minus N krát změna toku
lomeno změna času.
N je počet smyček, kterými pole prochází.
V našem případě N bude rovno 1
a na ten minus jsem si stěžoval už dříve.

Korean: 
여기서 자기장의 크기는
일정하지만
고리 도선이 포함하는 넓이는
변화하고 있으므로
고리 도선이 포함하는 넓이는
변화하고 있으므로
자속이 변화하게 됩니다
그리고 이 자속의 변화는
고리 도선에 기전력
즉 전압을 유도할 것이고
이는 전류가 흐르도록
할 것입니다
이는 전류가 흐르도록
할 것입니다
그러면 여기서 유도되는
기전력이란
어떤 개념인지 살펴보겠습니다
여기 패러데이의 법칙을
다시 써 보겠습니다
마이너스 부호에
감은 횟수 N
그리고 자속의 변화율을
곱하는데
자속의 변화율은
자속의 변화량을
시간의 변화량으로
나눈 것입니다
시간의 변화량으로
나눈 것입니다
먼저 감은 횟수
N 을 생각해보면
이 상황에서 N은
1일 것입니다
식 앞의 마이너스 부호는
앞의 영상들에서도
설명했었는데

Bulgarian: 
ти ще променяш
площта,
площта, която е оградена
от този контур –
и това ще ни даде
промяна в потока.
Ако имаш промяна в потока,
това ще индуцира
електродвижеща сила,
или ще индуцира напрежение
в тази верига,
което ще причини
протичане на ток.
Нека помислим каква ще е
електродвижещата сила,
която ще е
индуцирана.
Просто ще пренапиша
закона на Фарадей тук.
Законът на Фарадей: -n
по промяната в потока –
и говорим за промяна в потока
върху промяна в,
нека запиша това
малко по-прилежно –
промяна в потока
върху промяна във времето.
n е броят контури,
за които говорим.
В този случай
n ще е 1,
а този "-"...
вече малко се оплаках за него
в предишните видеа.

Thai: 
จะคงที่ คุณกำลังเปลี่ยนพื้นที่
พื้นที่นั่น ที่ล้อมรอบด้วย
วงนั้น มันจะ
ให้การเปลี่ยนแปลงฟลักซ์
และถ้าคุณมีการเปลี่ยนแปลงฟลักซ์
มันจะเหนี่ยวนำแรงเคลื่อนไฟฟ้า
หรือมันจะเหนี่ยวนำโวลเตจในลูปนี้
ซึ่งทำให้กระแสไหล
ลองคิดกันว่าแรงเคลื่อนไฟฟ้า
ที่เหนี่ยวนำจะเป็นเท่าใด
ผมจะเขียนกฎของฟาราเดย์ใหม่ตรงนี้นะ
กฎของฟาราเอย์ ลบ N คูณ
การเปลี่ยนแปลงฟลักซ์ เรากำลังพูดถึง
การเปลี่ยนแปลงฟลักซ์ส่วนการเปลี่ยนแปลง
ขอผมเขียนให้สวยหน่อย
การเปลี่ยนแปลงฟลักซ์
ส่วนการเปลี่ยนแปลงเวลา
N คือจำนวนวงที่เรากำลังพูดถึง
ในกรณีนี้ N จะเท่ากับ 1
แล้วลบ ผมบ่นไปแล้ว
ในวิดีโอก่อน

Bulgarian: 
Това всъщност ни припомня,
че изчисленията,
когато не използваш правилни
векторни изчисления –
това ни припомня,
че тази електродвижеща сила (EMF)
ще причини преминаване
на ток през тази верига
и магнитното поле,
което е индуцирано от този ток,
ще премине срещу посоката
на промяната в потока.
Това е просто
за напомняне.
Всъщност ни интересува
промяната в потока
върху промяната във времето.
Какво ще е това?
Нека го запиша тук.
Промяната в потока
върху промяната във времето.
Промяната в потока
в този случай
ще е промяната в
големината на нашето
магнитно поле,
което ще е перпендикулярно
на повърхността,
по площта на повърхността
върху промяната
във времето.
На колко
ще е равно това?
"В" е константа,
няма да се промени
през времето,
което ни интересува.

Thai: 
นี่เป็นแค่การเตือน
คณิตศาสตร์ เวลาคุณไม่ใช่
คณิตศาสตร์เวกเตอร์อย่างแท้จริง
มันจะเตือนเราว่า แรงเคลื่อนไฟฟ้า EMF
จะทำให้กระแสไหลในวงนี้
และสนามแม่เหล็กที่
กระแสนั้นเหนี่ยวนำจะต้านทิศ
การเปลี่ยนแปลงฟลักซ์ของเรา
มันมีไว้เตือนเรา
สิ่งที่เราสนใจจริงๆ คือ
การเปลี่ยนแปลงฟลักซ์
ส่วนการเปลี่ยนแปลงเวลา
ค่านั้นจะเท่ากับอะไร?
ขอผมเขียนมันตรงนี้นะ
การเปลี่ยนแปลงฟลักซ์
ส่วนการเปลี่ยนแปลงเวลา
การเปลี่ยนแปลงฟลักซ์ในกรณีนี้
จะเท่ากับการเปลี่ยนแปลง
ขนาดของสนามแม่เหล็ก
ที่ชี้ตั้งฉากกับผิว
คูณพื้นที่ผิว
ส่วนการเปลี่ยนแปลงของเวลา
ค่านี้จะเท่ากับอะไร?
B คงที่ มันจะไม่เปลี่ยน
เมื่อเวลาผ่านไปในตอนที่เราสนใจ

English: 
This is really just reminding us
the math, when you're not using
proper vector mathematics,
this just reminds us that this 'Emf'
is going to cause a current
to go through this loop,
and the magnetic field that is
induced by that current will
go against the direction
of our change in flux. That's
just something to remind us.
What we really care about is
our change in flux over change in time.
What is that going to be?
Let me just write it here,
our change in flux over change in time.
Our change in flux in this case
is going to be our change in
our, the magnitude of our magnetic field
that is going perpendicular to the surface
times the area of our surface
over our change in time.
What is this going to be equal to?
'B' is constant, it's not going to change
over the time that we care about.

Korean: 
수학적으로
생각해 보았을 때
벡터의 연산을
정확하게 하기 위한 것입니다
여기서 기전력(Elecmotive force, Emf)은
고리 도선에
전류가 흐르도록 할 텐데
이 전류로 인해
유도된 자기장은
자속의 변화와
반대 방향으로
생겨날 것입니다
이것이 마이너스 부호의 의미입니다
이제 생각해보아야 할 것은
시간에 대한 자속의
변화입니다
이것은 도대체
무슨 의미일까요?
이것은 도대체
무슨 의미일까요?
다시 써보겠습니다
자속의 변화는
표면에 수직한
자기장의 크기 B의 변화량과
표면에 수직한
자기장의 크기 B의 변화량과
표면의 넓이를 곱한 것을
(이때, ΔBA는 BA 전체의 변화량)
표면의 넓이를 곱한 것을
(이때, ΔBA는 BA 전체의 변화량)
시간의 변화량으로
나눈 것입니다
이것은 무엇과 같을까요?
여기서 자기장은
시간에 관계없이 일정합니다
여기서 자기장은
시간에 관계없이 일정합니다

Czech: 
Jenom nás upomíná, že když nepoužíváme
pořádnou vektorovou matematiku,
tohle elektromotorické napětí
vyvolá ve smyčce proud,
jehož indukované magnetické pole
bude směřovat proti změně toku.
Tohle je jenom upomínka.
Nás vlastně zajímá jen změna toku v čase.
Kolik to bude?
Napíšu to sem, změna
toku lomeno změna času.
V našem případě bude změna toku rovna
změně velikosti magnetického pole,
tedy jeho složky
kolmé k povrchu smyčky,
násobená obsahem povrchu
smyčky děleno časem.
Čemu to bude rovno?
B je konstantní, v čase,
o který nám jde, se nebude měnit.

Korean: 
따라서 B와 A의 곱의
변화량은
사실 B에다가 넓이의 변화를
곱한 것과 같습니다
시간이 지남에 따라
넓이가 어떻게 변하는지 말입니다
여기서 넓이의 변화는
어떻게 될까요?
Δt 만큼의 시간이 흐른 후
넓이는 얼마나 변화할까요?
Δt 만큼의 시간이
흘렀다고 해봅시다
시간이 흘러가서
t 시간만큼
시간이 지났다고 하면
t 시간만큼
시간이 지났다고 하면
t 시간만큼
시간이 지났다고 하면
 
도선은 그 시간동안
얼마나 움직일까요?
우리는 속도의 크기를
알고 있습니다
만약 속도의 크기를
시간의 변화에 곱하면
움직인 거리를 구할 수
있을 것입니다

English: 
So the change in 'B' times 'A'
is really going to be 'B'
times our change in area.
'B' times our change in area
over how much time goes by.
So what is our change in area going to be?
Let's say we let delta 't' ,
let's say delta 't' happens,
what is going to be our change in area?
Let's let delta 't' go on.
If delta 't' goes on, this cylinder,
or if we wait for 't' units of time,
or if 't' units of time go by,
let me do this in another color,
I'm gonna use this color right over here.
How far will we go after delta 't'?
We know the magnitude of our velocity
if you multiply the
magnitude of your velocity
times your change in time,
that will give you your distance.

Bulgarian: 
Промяната в "В"
по А
всъщност ще е В
по промяната в площта.
В по промяната в площта
по колко време изминава.
Каква ще е
промяната ни в площта?
Да кажем, че измине
делта t.
Каква ще е
промяната в площта?
Нека измине делта t.
Ако измине делта t,
този цилиндър...
или ако изчакаме
t единици време,
или ако изминат
t единици време,
нека направя това
в друг цвят,
ще използвам
този цвят тук.
Колко надалеч ще отидем
след делта t?
Знаем големината
на скоростта,
ако умножиш големината
на скоростта
по промяната
във времето,
това ще ти даде
разстоянието.

Thai: 
การเปลี่ยนแปลงของ B คูณ A
มันจะเท่ากับ B คูณการเปลี่ยนแปลงพื้นที่
B คูณการเปลี่ยนแปลงพื้นที่ ส่วนเวลาที่ผ่านไป
แล้วการเปลี่ยนแปลงพื้นที่จะเป็นเท่าใด?
สมมุติว่าเราให้เดลต้า t 
สมมุติว่าเดลต้า t เกิดขึ้น
การเปลี่ยนแปลงพื้นที่จะเป็นเท่าใด?
ลองให้ผ่านไปเดลต้า t
ถ้าเดลต้า t ผ่านไป ทรงกระบอกนี้
ถ้าเรารอนาน t หน่วย
หรือถ้าเวลาผ่านไป t หน่วย
ขอผมใช้อีกสีนะ
ผมจะใช้สีนี่ตรงนี้
เราจะไปไกลเท่าใดหลังจากเดลต้า t?
เรารู้ขนาดของความเร็วเรา
ถ้าคุณคูณขนาดของความเร็ว
ด้วยการเปลี่ยนแปลงของเวลา
คุณจะได้ระยะทาง

Czech: 
Změna B krát A znamená
B krát změna plochy.
B krát změna plochy děleno
časem, který uběhnul.
Jaká bude naše změna plochy?
Když uběhne čas delta t,
jak se změní naše plocha?
Nechme běžet čas delta t.
Během delta t se tento válec…
Nebo řekněme, že po uplynutí
t jednotek času…
Udělám to jinou barvou…
Jak daleko se dostaneme za delta t?
Známe velikost rychlosti,
a když vynásobíme velikost rychlosti
změnou času, dostaneme vzdálenost.

English: 
Your change in area is going to be
the amount of distance it's travelled
times the length of the
rod, which is just that.
Our change in area, which is
that area right over there,
our change in area over that time
is going to be the distance this rod goes.
Notice this rod is going in a direction
that is perpendicular to the
direction of the magnetic field
that's an important thing to realize.
We have our change in area is going to be
this dimension which is
how far the rod travels
times the length of the rod,
that's how much area we gain,
that's how much our area increases,
times the length of the rod,
that's our change in area.
We can substitute that back over here.
This is going to be equal to,
we got our 'B', we have
our change in time,

Thai: 
การเปลี่ยนแปลงพื้นที่จะ
เท่ากับปริมาณระยะที่เดินทาง
คูณความยาวแท่ง ซึ่งก็คือค่านั้น
การเปลี่ยนแปลงพื้นที่ ซึ่งก็คือพื้นที่ตรงนี้
การเปลี่ยนแปลงพื้นที่ส่วนเวลานั้น
จะเท่ากับระยะที่แท่งนี้ไป
สังเกตว่าแท่งจะไปในทิศ
ที่ตั้งฉากกับทิศของสนามแม่เหล็ก
นั่นเป็นสิ่งสำคัญที่ควรสังเกต
เรามีการเปลี่ยนแปลงของพื้นที่
เท่ากับขนาดนี้ คือระยะที่แท่งเดินทาง
คูณความยาวแท่ง นั่นคือพื้นที่ที่เราได้
นั่นคือปริมาณพื้นที่ที่เพิ่มขึ้น
คูณความยาวแท่ง นั่นคือการเปลี่ยนแปลงพื้นที่
เราแทนค่านี้กลับไปได้
อันนี้จะเท่ากับ
เราได้ B เราได้การเปลี่ยนแปลงของเวลา

Bulgarian: 
Промяната в площта
ще е количеството
изминато разстояние
по дължината на пръта,
която е просто това.
Промяната в площта,
която е тази площ тук,
промяната в площта
през това време
ще е разстоянието,
което изминава този прът...
Забележи, този прът
преминава в посока,
която е перпендикулярна на
посоката на магнитното поле.
Важно е да
осъзнаем това.
Промяната в площта
ще е това разстояние,
което представлява колко надалеч
преминава пръта,
по дължината на пръта –
толкова площ получаваме,
толкова се увеличава
площта ни –
по дължината на пръта,
това е промяната ни в площта.
Можем да заместим това
обратно тук.
Това ще е равно на –
имаме нашето В,
имаме промяната във времето

Korean: 
넓이의 변화량은
막대 도선이 이동한 거리에
도선의 길이 L을
곱한 것입니다
따라서 그림과 같이
시간의 변화에 따른
넓이의 변화량은
이 도선이 움직인
거리에 비례합니다
여기서 꼭 알아두어야
할 것은
막대 도선이 자기장의 방향과
수직한 방향으로
움직이고 있다는 사실입니다
이제 넓이의 변화량이
막대가 움직인 거리
즉 속도와 시간의 곱에
막대의 길이를 곱한 것임을
알았고
따라서 넓이의 변화량을
구할 수 있게 되었습니다
다시 기전력의
식으로 돌아와서
이제 이 식을
다시 써 보겠습니다
우리는 B를 알고 있고
시간의 변화량도 알고 있습니다

Czech: 
Změna plochy bude rovna vzdálenosti,
kterou váleček urazil, krát jeho délka L.
Naše změna plochy v čase, tedy tahle část,
bude úměrná vzdálenosti, kterou tyč urazí.
Všimněte si, že se tyč pohybuje směrem
kolmým ke směru magnetického pole.
To je důležité.
Změna plochy bude vzdálenost,
kterou tyč urazí, krát délka tyče.
Tolik plochy nám přibyde.
To je změna plochy.
Můžeme to dosadit sem.
To se bude rovnat…

Thai: 
การเปลี่ยนแปลงของพื้นที่ ที่เราเพิ่งบอกว่า
ขอผมเขียนมันแบบนี้นะ
ผมเขียนได้เป็นความยาวแท่ง
คูณขนาดของความเร็ว หรืออัตราเร็ว
คูณการเปลี่ยนแปลงของเวลา
การเปลี่ยนแปลงของเวลา
หารด้วยการเปลี่ยนแปลงของเวลา
พวกมันตัดกัน การเปลี่ยนแปลง
ฟลักซ์หารด้วยเวลา
หรืออัตราการเปลี่ยนแปลงฟลักซ์เฉลี่ย
เราลดรูปมันเหลือความยาวแท่ง
คูณขนาดของความเร็วเรา
หรืออัตราเร็ว คูณขนาดของสนามแม่เหล็ก
ที่ตั้งฉากกับผิวนั้น
นี่คือสิ่งที่คุณจะเห็นหลายครั้งมาก
ในวิชาฟิสิกส์ แนวคิดเรื่อง
แท่งเคลื่อนที่ในทิศตั้งฉาก
กับสนามแม่เหล็ก มันเหนี่ยวนำ
แรงเคลื่อนไฟฟ้าเท่ากับ LvB
นี่คือที่มาของมัน
มันตรงมาจากกฎของฟาราเดย์
คุณถามได้ว่า โอเค ถ้ามันเกิดขึ้น

Korean: 
그리고 방금 구했듯이
넓이의 변화량은
 
막대 도선의 길이와
속도의 크기 즉 속력
그리고 시간의 변화량을
곱한 것과 같습니다
여기서 분모와 분자의
시간의 변화량은
약분되어 사라지므로
시간당 자속의 변화
혹은 자속의 변화율은
막대의 길이와
속도의 크기 또는 속력
그리고 표면에 수직인
자기장의 크기의 곱으로
간단하게 나타내어집니다
아마 물리 수업 때
많이 보게 될
문제일 텐데
이처럼 막대가
자기장과 수직한 방향으로
움직일 때
LvB 크기의 기전력을
유도한다는 개념을
많이 접하게 될 것입니다
이것은 패러데이의 법칙으로부터
바로 구해지는 것이고
이것은 패러데이의 법칙으로부터
바로 구해지는 것이고
그렇다면, 이 때

Bulgarian: 
и промяната в площта,
току-що казахме, че е...
Нека го запиша така...
Мога да запиша това
като дължината на пръта ни
по големината на скоростта
по промяната във времето.
Промяната във времето
делена на промяната във времето –
тези се съкращават.
Промяната в потока за това време,
или средната скорост на промяната в потока,
както виждаме, се опростява до
дължината на пръта
по големината
на нашата скорост
по големината на
магнитното поле,
което преминава перпендикулярно
на повърхността.
Това е нещо,
което ще видиш много пъти
в класа си по физика,
цялата идея,
че ако прътът ти преминава
в перпендикулярна посока
на едно магнитно поле,
това индуцира
електродвижеща сила от LvB.
Оттук идва това –
идва директно от
закона на Фарадей.
Можеш да кажеш:
"Добре, ако това се случва,

Czech: 
Budeme tu mít B,
změnu času a změnu plochy…
Délka tyče krát velikost
rychlosti krát změna času.
Změna času dělená změnou času se vyruší.
Průměrná změna toku se zjednoduší na:
součin délky tyče, její rychlosti
a velikosti kolmé složky magnetického pole.
Tohle ve fyzice potkáte často,
že tyč pohybující se
kolmo k magnetickému poli
indukuje elektromotorické
napětí velikosti L v B.
Vychází to odtud,
z Faradayova zákona.

English: 
and our change in area we
just said is going to be,
Let me just write it this way,
I could write is as the length of our rod
times the magnitude of
our velocity, or our speed
times our change in time.
Well, change in time
divided by change in time,
those cancel out. Our change
in flux over that time
or our average rate of change in flux
we see simplifies to the length of our rod
times the magnitude of our velocity,
or our speed, times the
magnitude of the magnetic field
that is going perpendicular
to the surface.
This is something that
you will see many times
in your physics class,
this whole notion of
if your rod going in a
perpendicular direction
to a magnetic field, it induces
an electromotive force of 'LvB'
This is where it's coming from,
it's coming directly from Faraday's law.
You can say, okay, if that's happening,

Bulgarian: 
в каква посока ще тече
нашият ток?"
Магнитното поле
не се променя,
но тъй като площта
се увеличава,
потокът се увеличава в
посока нагоре.
Можеш да кажеш, че потокът
се увеличава в тази посока.
Токът, който
бива индуциран,
и големината на тока
ще е
основана на това
колко съпротивление имаме,
но токът ще индуцира
магнитно поле,
което преминава срещу
промяната в потока.
Да видим, ако токът се движи насам,
какво ще се случи?
Ще използвам
дясната си ръка,
поставям палеца си
в тази посока
и ако извия пръстите си,
ако преминем насам,
това ще опише,
това ще индуцира магнитно поле,
което преминава ето така.
Това ще увеличи потока,
или промяната в потока,

Thai: 
กระแสจะไหลไปในทิศใด?
ถ้าสนามแม่เหล็กไม่เปลี่ยน
แต่เนื่องจากพื้นที่เพิ่มขึ้น
ฟลักซ์จะเพิ่มในทิศขึ้นด้วย
คุณบอกได้ว่าฟลักซ์กำลังเพิ่มขึ้นในทิศนั้น
กระแสที่เหนี่ยวนำ
และขนาดของกระแสจะ
ขึ้นอยู่กับความต้านทานที่เรามี
แต่กระแสจะเหนี่ยวนำสนามแม่เหล็ก
ที่ต้านการเปลี่ยนแปลงฟลักซ์ของเรา
ลองดู ถ้ากระแสไหลแบบนั้น จะเกิดอะไรขึ้น?
ผมจะเอามือขวาออกมา
วางนิ้วโป้งในทิศนั้น
และถ้าผมวนรอบนิ้วมือผม
มันจะ ถ้าเราทำแบบนั้น มันจะบรรยายว่า
กระแสนี้เหนี่ยวนำสนามแม่เหล็ก
เป็นแบบนี้
มันจะเสริม
ฟลักซ์ที่ผ่าน หรือเปลี่ยนฟลักซ์

Korean: 
전류는 어느 방향으로
유도될까요?
만약 자기장이
변하지 않는다면
넓이는 증가하기 때문에
위쪽 방향으로의 자속은
증가하게 됩니다
위쪽 방향으로의 자속은
증가하게 됩니다
이때 유도되는 전류는
그리고 그 전류의 크기는
도선의 저항에 따라
달라지는데
이때 전류는
자속의 변화를
방해하는 방향의
자기장을 유도할 것입니다
만약 전류가 막대에서
위쪽으로 흐른다면 어떻게 될까요?
오른손 법칙을 이용하여
전류 방향으로
엄지를 놓고
나머지 손가락들을 감으면
이것은 위쪽 방향으로의
자기장을 유도할 것입니다
자기장을 유도할 것입니다
이렇게 증가한 자속은
기존의 자속과
같은 방향이므로
기존의 자속을

English: 
what direction is the current
going to actually flow in?
If the magnetic field isn't changing,
but since the area is increasing,
the flux is increasing
in the upward direction.
You can say the flux is
increasing in that direction.
The current that gets induced,
and the magnitude of the
current is going to be,
based on how much resistance we have,
but the current is going
to induce a magnetic field
that goes against our change in flux.
Let's see, if the current went
that way, what will happen?
I'm going to take my right hand out,
put my thumb in that direction,
and if I were to loop my fingers around,
this would, if we went that
way, this would describe,
this would induce a magnetic field
that goes like this.
That actually would enhance
the flux going through
the, or change in flux,

Czech: 
Dobrá, ale jakým směrem
vlastně ten proud teče?
Magnetické pole se nezvětšuje,
ale protože se zvětšuje plocha,
tok se zvětšuje směrem vzhůru.
Tok se zvětšuje tímto směrem.
Indukuje se proud, jehož
velikost závisí na odporu,
a který indukuje magnetické
pole potlačující změnu toku.
Zkusme, co by se stalo,
kdyby proud tekl tímto směrem?
Vezmu svoji pravou ruku,
ukážu palcem tudy,
a když dám prsty takhle kolem, vidím,
že tento proud by indukoval
magnetické pole tímto směrem.

Bulgarian: 
преминаващ в същата посока
на промяната в потока.
Вече говорихме
за това –
то ще наруши закона
за запазване на енергията.
Токът ще премине
в другата посока.
Ще премине, в този случай,
по часовниковата стрелка,
понеже токът ще индуцира
магнитно поле.
Отново, изваждам
дясната си ръка
и опитвам да нарисувам
дясната си ръка,
и сега можем да видим,
че пръстите ми преминават насам.
Забележи, гледаме
вътрешната част на повърхността,
повърхностната площ увеличаваше
потока в посока нагоре,
като правеше така, че по-голяма част
от магнитното поле в посока нагоре
да се съдържа
в площта.
Магнитното поле, индуцирано
от тока, който е индуциран,
или токът, който е причинен
от електродвижещата сила,
и големината на тока
ще зависи от
съпротивлението,
което ще преминава
в другата посока,
ще преминава надолу,
насам.
Или това ще индуцира
магнитно поле,
което ще е с посока надолу.

Korean: 
증가시킬 것입니다
이런 상황에 대해서는
이미 논의해 보았는데요
이는 에너지 보존 법칙을
위배합니다
따라서 전류는
반대의 방향으로 흘러야 합니다
전류가 반시계 방향으로
흐른다고 해보겠습니다
이때도 전류는
자기장을 유도할텐데
다시 한 번
오른손 법칙을 사용하면
다시 한 번
오른손 법칙을 사용하면
이번에는 엄지의 방향이
아래쪽을 가리킵니다
고리 도선 안쪽
넓이를 살펴보면
넓이가 증가하면서
위쪽 방향의 자속은
증가하고 있었고
자기장이 작용하는
고리 내부 면적이
증가하고 있었습니다
따라서 유도된 전류가
만드는 자기장
그러니까 저항에
의존하는 기전력에
그러니까 저항에
의존하는 기전력에
의해서 생기는 전류는
반대 방향이므로
막대 도선의
아래쪽으로 흐를 것입니다
따라서 자기장은
표면 아래 방향으로
유도될 것입니다

English: 
going the same direction
of the change in flux,
We've already talked about this,
would violate the law of
conservation of energy.
The current's gonna go
in the other direction.
It's gonna go, in this case
is going to go clockwise,
because the current is going
to induce a magnetic field.
Once again, I could
take my right hand out,
and try to draw my right hand,
and we can see now, the direction
my fingers go in are that way.
Notice we're looking at
the inside of the surface,
the surface area was increasing the flux
in the upward direction, getting more
of the magnetic field
in the upward direction,
being contained in the area.
The magnetic field induced by
the current that is induced,
or that current that's being caused
by the electromotive
force and the magnitude of
the force is going to be
dependent on our resistance,
that's going to go in the other direction,
it's going to go down that way.
Or it's going to induce a magnetic field
that is gonna go downwards.

Czech: 
To by magnetický tok ještě zesílilo,
protože to míří stejným směrem.
O tom jsme už mluvili,
to jde proti zákonu zachování energie.
Proud poteče opačným směrem.
V tomto případě půjde
po směru hodinových ručiček,
protože proud bude
indukovat magnetické pole.
Zase můžu nakreslit svojí pravou ruku,
a tentokrát moje prsty míří takto.
Všimněte si, že se díváme
na vnitřek té plochy.
Změna plochy zvyšuje tok směrem vzhůru,
protože tím směrem jde víc magnetických
siločar ohraničených smyčkou.
Magnetické pole indukované proudem
indukovaným elektromotorickým napětím,
bude záviset na odporu a bude
mířit opačným směrem, tedy dolů.

Thai: 
ในทิศเดียวกับการเปลี่ยนแปลงฟลักซ์
เราคุยเรื่องนี้ไปแล้ว
มันขัดแย้งกับกฎอนุรักษ์พลังงาน
กระแสจึงไหลในตรงข้าม
มันจะไป ในกรณีนี้คือตามเข็มนาฬิกา
เพราะกระแสจะเหนี่ยวนำสนามแม่เหล็ก
เหมือนเดิม ผมนำมือขวาออกออกมา
พยายามวาดมือขวาผมเอง
และเราเห็นได้ว่าตอนนี้ ทิศ
ที่นิ้วผมไป เป็นแบบนั้น
สังเกตว่าเราดูข้างในผิว
พื้นที่ผิวจะเพิ่มฟลักซ์
ในทิศขึ้น ได้
สนามแม่เหล็กในทิศขึ้น
อยู่ในพื้นที่มากขึ้น
สนามแม่เหล็กที่เหนี่ยวนำโดยกระแสก็ก่อตัว
หรือกระแสที่ถูกสร้าง
จากแรงเคลื่อนไฟฟ้า
จริงๆ มันขึ้นอยู่กับความต้านทานของเรา
มันจะไปคนละทิศ
มันจะลงไปแบบนั้น
หรือมันจะเหนี่ยวนำสนามแม่เหล็ก
ที่ชี้ในทิศลง

Czech: 
Proud tedy musí téct
po směru hodinových ručiček.

Thai: 
กระแสจึงต้องวนตามเข็มนาฬิกา

Bulgarian: 
Токът трябва да е
по часовниковата стрелка.

Korean: 
이처럼 전류는
반시계 방향으로 유도되어야 합니다

English: 
So the current needs
to be going clockwise.
