Question

The north pole of a long bar magnet was pushed slowly into a short solenoid connected to a galvanometer. The magnet was held stationary for a few seconds with the north pole in the middle of the solenoid and then withdrawn rapidly. The maximum deflection of the galvanometer was observed when the magnet was:; A. moving towards the solenoid; B. moving into solenoid; C. at rest inside the solenoid; D. moving out of the solenoid

Answer 1

Answer:

A). moving towards the solenoid.

Answer 2

Answer:

D. moving out of the solenoid

Explanation:

During the whole process, the maximum deflection of galvanometer takes place when the magnet was moving out of the solenoid. in an electromagnetic induction process, the magnitude of current-induced depends upon the relative motion of the field and coil. As during moving out the relative motion was more hence the galvanometer will have maximum deflection.  

So, the option D is right.