Insulated copper wire in wounder around the plastic cylinder and connected to galvanometer what will happen why
Answers
Please try to post complete question :
The complete question should be some what like this:
A Coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is :
a) Pushed into the coil.
b) Withdrawn from the coil.
c) Held stationary near the coil.
Give reasons for your observation.
Answer :
a)When a bar magnet is pushed inside the coil, an induced current is setup in the coil as the magnetic flux linked with coil changes continuously and galvanometer deflects towards right side.
b) When bar magnet is moving away from coil, as there is changing in magnetic flux linked to coil, induced current is setup and galvanometer deflects in opposite direction.
c) When magnet is held stationary, as there is no change in magnetic flux , the current is not induced and galvanometer will not deflect.
