Home
Class 12
PHYSICS
A conducting ring R is placed on the axi...

A conducting ring R is placed on the axis of a bar magnet M. The plane of R is perpendicular to this axis, M can move along this axis.

A

M will repel R when it is moving towards R

B

M will attract R when it is moving towards R

C

M will repel R when moving towards as well as away from R

D

M will attract R when moving towards as well as away from R

Text Solution

Verified by Experts

The correct Answer is:
A
By Lenz law as Induced current is such that it always opposes the cause of its generation
Promotional Banner

Similar Questions

Explore conceptually related problems

A conduting ring R is placed on the axis of a bar magnet M . The plane of R is perpendicular to this axis. M can move along this axis

Find the out the moment of inertia of a ring having uniform mass distribution of mass M and radius R about an axis which is tangent ot the ring and a in the plane of the ring b . perpendicular to the plane of the ring.

A conducting ring of radius r and resistance R is placed in region of uniform time varying magnetic field B which is perpendicular to the plane of the ring. It the magnetic field is changing at a rate alpha , then the current induced in the ring is

A small coil of radius 0.002 m is placed on the axis of a magnet of magnetic moment 10^(5) JT^(-1) and length 0.1 m at a distance of 0.15 m from the centre of the magnet. The plane of the coil is perpendicular to the axis of the magnet. Find the force on the when a current of 2.0 A is passed through it.

There is a conducting ring of radius R . Another ring having current i and radius r (r lt lt R) is kept on the axis of bigger ring such that its center lies on the axis of bigger ring at a distance x from the center of bigger ring and its plane is perpendicular to that axis. The mutual inductance of the bigger ring due to the smaller ring is

A semicircle conducting ring of radius R is placed in the xy plane, as shown in Fig. A uniform magnetic field is set up along the x-axis. No emf, will be induced in the ring if

The M.I. of a ring of mass M and radius R about a tangential axis perpendicular to its plane is :

A long straight wire is placed along the axis of a circuit ring of radius R. The mutual inductance of this system is

A ring is rotated about diametric axis in a uniform magnetic field perpendicular to the plane of the ring. If initially the plane of the ring is perpendicular to the magnetic field. Find the instant of time at which EMF will be maximum & minimum respectively. (Figure: )