A bar magnet is moved along the axis of a cop | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) According to Lenz's law,the induced current in a loop opposes the change in magnetic flux that produces it.When viewed from the side of the magnet

Vedclass · Accepted Answer

The north pole faces the ring and the magnet moves towards it.

Vedclass · Answer

(B) According to Lenz's law,the induced current in a loop opposes the change in magnetic flux that produces it.When viewed from the side of the magnet,an anticlockwise current in the ring creates a magnetic field directed towards the magnet (acting as a North pole).If the North pole of the magnet faces the ring and moves towards it,the magnetic flux through the ring increases. To oppose this,the ring induces a North pole to repel the magnet.If the South pole of the magnet faces the ring and moves away from it,the magnetic flux through the ring decreases. To oppose this,the ring induces a North pole to attract the magnet.Therefore,both the North pole facing the ring and moving towards it,or the South pole facing the ring and moving away from it,would result in an anticlockwise current. Among the given options,$B$ is a correct possibility.

$A$ bar magnet is moved along the axis of a copper ring placed far away from the magnet. Looking from the side of the magnet,an anticlockwise current is found to be induced in the ring. Which of the following may be true?

Similar Questions

The adjoining figure shows two different arrangements in which two square wire frames are placed in a uniform constantly decreasing magnetic field $B.$ The direction of induced current in the case $II$ is

Lenz's law is representing which fundamental conservation law?

To induce an $e.m.f.$ in a coil, the linking magnetic flux

$A$ coil having $100$ square loops each of side $10 \ cm$ is placed such that its plane is normal to a magnetic field,which is changing at a rate of $0.7 \ T \ s^{-1}$. The emf induced in the coil is (in $V$)

Vedclass Test Series

Exam Paper Generator

Online Exam Module