00:01
Here in this question we are given this drawing.
00:02
So in this drawing we are given two circular coils, their top view.
00:07
So we have one outer coil and one inner coil here.
00:11
And they are lying on a flat surface.
00:13
Their centers also coincide.
00:16
Now it says that the outer coil, so the larger one is connected with the battery.
00:22
So we have a battery here.
00:23
So this is the negative side of the battery.
00:25
This is the positive side.
00:27
And we have a switch.
00:29
And the smaller coil contains nothing.
00:32
Now we know that we have to find out about the induced current in the inner coil, the second one, when the switch in the outer coil is closed.
00:43
So we have to tell about the induced current in this one.
00:45
So first of all what we need to know is as soon as we close the switch, we have closed the switch...