Question

A coil of insulated copper wire is connected to a torch bulb.State the likely 'response' of the bulb,if a bar magnet is-(a)pushef into the coil?(b)pulled out of the coil?(c)held stationery within the coil?​

Answer 1

Answer:

at both the time in situations a and b for a fraction of second bulb will glow as per electromagnetic induction effect but if magnet is place stationary within coil there will be no effect on bulb.

Answer 2

Answer:

a) Inductor current due to electromagnetic induction.

b) The current is induced in the coil but this time it is in reverse direction.

c) no current is induced that why galvanometer will show no deflection.