Question

42. Insulated copper wire in wounder around the plastic cylinder and conncted to galvanometer. what happen why. a) Bar magnet pushed in c) Bar magnet pull
b) Bar magnat keep out d) Number of terms increases​

Answer 1

Explanation:

Given data:

Insulated copper wire in wounded around the plastic cylinder and conncted to galvanometer

To find:

What happens in the following conditions.

Solution:

a) Bar magnet pushed

The galvanometer will deflect as magnetic field induces a current.

b) Bar magnat keep out

The galvanometer will deflect in opposite direction as the magnetic field again induces some current.

c) Bar magnet pull

This will also show deflection due to change in magnetic field.

d) Number of turns increases

The sensitivity of galvanometer will increase.