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When a bar magnet is brought closer to a...

When a bar magnet is brought closer to a coil, emf generated in the coil does not depend on ______

A

no. of turns

B

velocity of magnet

C

strength of magnetic field of magnet

D

resistance of coil

Text Solution

Verified by Experts

The correct Answer is:
D
Here, emf generated in the coil depends on no. of turns in the coil and rate of change of magnetic flux with one turn (which depends on velocity of magnet and strength of magnetic field of a magnet).
Resistance is always offered to the flow of current, after it is produced.
Thus, emf generated in the coil does not depend on its resistance.
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Knowledge Check

  • Magnitude of emf produced in a coil, when magnet is inserted in the coil does not depend upon ___ no of turns in the coil

    A
    no of turns in the coil
    B
    magnetic moment of a magnet
    C
    speed of magnet
    D
    resistance of a coil

  • When a bar magnet is divided into two pieces,

    A
    both the pieces lose magnetism.
    B
    both the pieces behave like individual magnets.
    C
    both the poles get separated.
    D
    one piece behaves like a magnet and the other does not.

  • When a bar magnet is placed on the axis of a coil with north pole facing the coil, face of coil towards the magnet behaves like ____

    A
    a north pole
    B
    a south pole
    C
    no pole (devoid of magnetism)
    D
    permanent magnet

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