A current is induced in a conducting loop that lies in a horizontal plane, and t

Question

A current is induced in a conducting loop that lies in a horizontal plane, and the induced current is clockwise when viewed from above. Which of the following statements could be true? A magnetic field whose magnitude is decreasing is directed vertically upward A constant magnetic field is directed vertically downward A magnetic field whose magnitude is decreasing is directed vertically downward A magnetic field whose magnitude Is increasing Is directed vertically downward A constant magnetic field is directed vertically upward

Explanation / Answer

from faradays law induced emf V = -d(phi)/dt

V = -AdB/dt

From lenz law, in electromagnetism, statement that an induced electric current flows in a direction such that the current opposes the change that induced it

induced current is clock wise

dB/dt = -ve

correct option is a magnetic filed whose magnitude is decreasing is directed vertically downward

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