Question

A coil is insulated copper wire us connected to galvanometer.What happens if a barmagnet is: (a) pushed into the coil? (b) withdrawn from inside the coil? (c) held stationary inside the coil? Give reasons for your observation

Answer 1

Answer: When the bar magnet ispushed into the coil orwithdrawn from the coil there will be a deflection in thegalvanometer. This is because of the induced current in the coilwhich is generated due to the relative motion between the coiland magnet.

Answer 2

$\huge\underline\mathfrak\blue{Answer}$

(i) when magnet is pushed near a bar magnet then it induces current due to electromagnetic induction.

(ii) When the bar magnet is withdrawn from inside the coil of the insulated copper wire again the current is induced in the coil but this time it is in reverse direction.

(iii) When a bar magnet is held stationary inside the coil then no current is induced that’s why galvanometer will show no deflection.