Home
Class 12
PHYSICS
A cylindrical bar magnet is rotated abou...

A cylindrical bar magnet is rotated about its axis (Figure). A wire is connect from the axis and is made to touch the cylindrical surface through a contact. Then

Text Solution

Verified by Experts

The correct Answer is:
b
AS there is no change in magnetic flux associated with the circuit, no current, is induced in the circuit.The ammete A shows no deflection.
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • ELECTROMAGNETIC INDUCTION

    NCERT FINGERTIPS|Exercise HIGHER ORDER THINKING SKILLS|8 Videos

  • ELECTRIC CHARGES AND FIELDS

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

  • ELECTROMAGNETIC WAVES

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

In the given figure, a cylinderical bar magnet is rotated about its axis. A wire is connected from the axis and is made to touch the cylinderical surface through a contact. Then, current in the Ammeter is.....

The rotation of earth about its axis is

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

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

A brass disc is rotating about its axis. If temperature of disc is increased then its

On account of the earth rotating about its axis

A cylindrical vessel partially filled with water is rotated about its vertical central axis. It’s surface will

A cylindrical bar magnet is kept along the axis of circular coil and near it as shown in Fig. Will there be any induced emf at the terminals of the coil, when magnet is rotated (a) about its own axis (b) about an aixs perpendicular to the length of the magnet ?

If the speed of rotation of earth about its axis is increased,

A liquid is kept in a cylindrical jar, which is rotated about the cylindrical axis. The liquid rises at its sides. The radius of the jar is r and speed of rotation is Omega the difference in height at the centre and the sides of the jar is