Home
Class 12
PHYSICS
The figure shows a bar magnet and a meta...

The figure shows a bar magnet and a metallic coil. Consider four situations.
(I) Moving the magnet away from the coil. (II) Moving the coil towards the magnet. (III) Rotating the coil about the vertical diameter. (IV) Rotating the coil about its axis.

An emf in the coil will be generated for the following situations.

A

(I) and (II) only

B

(I), (II) and (IV) only

C

(I), (II), and (III) only

D

(I), (II), (III), and (IV)

Text Solution

Verified by Experts

The correct Answer is:
C
No EMF Induce if ring rotate about its own axis (`therefore Deltaphi = 0`)
Hence, I, II & IV are correct
Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2013

    KVPY PREVIOUS YEAR|Exercise PART-II (PHYSICS)|5 Videos

  • QUESTION PAPER 2013

    KVPY PREVIOUS YEAR|Exercise PART-I ( PHYSICS)|20 Videos

  • MOCK TEST 9

    KVPY PREVIOUS YEAR|Exercise EXERCISE|19 Videos

  • QUESTION PAPER 2020

    KVPY PREVIOUS YEAR|Exercise PART-I : PHYSICS |50 Videos

Similar Questions

Explore conceptually related problems

A magnet is moved towards the coil

A bar magnet is kept along the axis is coil with its N-pole facing the coil. The magnet is then rotated along its own axis. The induced current in the coil will we

In the following figure, the magnet is moved towards the coil with a speed v and induced emf is e. if magnet and coil reced away from one another each moving with speed v , the induced emf in the coil will be

A cylindrical bar magnet is kept along the axis of a circular coil. If the magnent is rotated about its axis, then

When a magnetic is moved with its N pole away from the coil, then the nearer face of the coil behaves as a

When a magnet is moved with its south pole towards the coil, then the nearer face of the coil behaves as a

At which position of the plane of the rotating coil with the direction of magnetic field the e.m.f induced in the coil is maximum ?

A magnet is moving towards a coil along its axis and the emf induced in the coil is epsilon . If the coil also strats moving towards the magnet with the same speed, the induced emf will be