Question

A coil of insulated wire is connected to a galvanometer. What
would be observed if a strong bar magnet with its south pole
towards one face of the coil is
(i) moved quickly toward it?
(ii) moved quickly away from it?
(ii) held stationary near it?

Name the phenomena involved.

State the conclusion based on the observations in (i), (ii)
and (iii)
​

Answer 1

Answer:

Explanation

The phenomenon invovlved is called Magnetic Induction:

i. The side of the coil facing the approaching magnet will change its polarity to south pole to repel the magnet and there will be cuurent detected  in galvanometer due to change in flux.

ii. the side of the coil facing the approaching magnet will change its polarity to north pole to attract the magnet and there will be current detected  in galvanometer.

iii- current will flow for a short while as there is a temporary change in magnetic flux .

hope it helps i am 90 percent sure this is right as i am in class 7.