Hello friends in this video we are going
to see VI characteristic of a ideal
current source so I am taking a current
source of the value IM PM so like
this to this current source I am
connecting a load resistor RL now the
circuit is closed current will flow
through this RL which will be IL since
current is flowing through the RL I will
get voltage across it of this polarity so
I can say voltage VL is IL into RL now
we are going to drop VI characteristic
of this ideal current source this time
independent variable is VL and dependent
on value of VL I will have values of IL
now lets take a simple example lets
take this current source of 5 ampere
since for this IL the only source is
this I every time i can say IL will be
a 5 ampere so I will consider IL as 5
ampere same as the value of I and based
on the value of RL and using this
equation I will get VL so in first case
lets take RL is 1 ohm so the VL will
become 5 volt
again for a second observation IL will
remain Phi resistor value if I am
considering 10 I will get VL as 50 one
more value we will take for  RL 100
since I and IL are same 5 so that VL
I will get 500 volt so no matter what
are the value of VL I will get IL
same which is nothing but I value is 5
ampere so if I draw the graph of IL and VL
I will get a straight line like this
irrespective of any value of VL I will
get fixed IL decided by I so here we
have seen that whenever current source
is given no matter what are the elements
connected in series to that current
source we should not bother about a
current flowing through that particular
element because that current will be
fixed and given by current source value
thank you
