Q5 of 30 Page 1

The electric current flowing in a wire in the direction from B to A is decreasing. Find out the direction of the induced current in the metallic loop kept above the wire as shown.

As the current is flowing from B to A and is decreasing, the magnetic field will be inwards of the plane of the loop and as the flux of the magnetic field is decreasing as per Lenz’s law an induced current will flow in the clockwise direction.


The current will flow in the loop as shown in the figure below.



More from this chapter

All 30 →
3

Two equal balls having equal positive charge ‘q’ coulombs are suspended by two insulating strings of equal length. What would be the effect on the force when a plastic sheet is inserted between the two?

 4

Define intensity of radiation on the basis of photon picture of light. Write its S.I. unit.

 6

Why is it found experimentally difficult to detect neutrinos in nuclear β-decay?

 7

Why is the use of A.C. voltage preferred over D.C. voltage? Give two reasons.