00:01
Hello and welcome to this video solution of numerate.
00:04
Here we are given that a loop of wire is placed perpendicular to the magnetic field.
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Suddenly the magnetic field begins to decrease.
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Right now what is the direction of the induced current you have to tell.
00:17
Right so clearly if you see this there is a loop and there are magnetic fields which is directed into the plane.
00:23
Right and now it is decreased.
00:28
Right so what will happen is there will be a current this is number three.
00:35
There will be a current so as to compensate for this lost magnetic field.
00:40
Right as per lenz's law.
00:44
Right using lenz's law what you have is you have to have a current which is moving in the clockwise direction.
01:02
Right because this magnetic fields are decreasing.
01:05
Right these are decreasing so you need to increase them now using a current.
01:12
So you know right this current if you if it's a clockwise current then it is the magnetic field will be produced into the plane.
01:20
So here clearly option is clockwise a...