Consider the situation shown in the drawing. A conducting loop is connected to a

Question

Consider the situation shown in the drawing. A conducting loop is connected to a resistor. The resistor and loop are at rest in a magnetic field that is directed toward you. Within a short period of time the magnetic field is reduced to one half of its initial value. Which one of the following statements concerning an induced current, if any, in the loop is true? a) During the time the magnetic field is decreasing, a current is induced that is directed counterclockwise around the loop. b) During the time the magnetic field is decreasing, a current is induced that is directed clockwise around the loop. c) No current is induced in the loop at any time. d) A current is induced that is directed clockwise around the loop, which also continues after the magnetic field attains a constant value. e) A current is induced that is directed counterclockwise around the loop, which also continues after the magnetic field attains a constant value.

Explanation / Answer

here flux is coming out of the loop which is also decreasing with time

So as per lenz law the magnetic flux is decreasing so it will induce the current in such a way that

the the change in flux will not affect

so Current induce in the loop is in counterclockwise direction when its flux is decreasing with time that is during the field is decreasing

SO 2nd statement is correct

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