Question

a bulb can be lighted using a strong bar magnet and coil of insulated copper wire define the phenomenon behind this​

Answer 1

It is the electromagnetic induction in which the emf is produced in a loop when there is a flux change passing through a loop.

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Answer 2

The phenomenon behind the incident mentioned in the question,is known as the electromagnetic induction.

• According to the electromagnetic induction theory, we can produce electricity by altering the magnetic field near a conductor or by moving the conductor around the stationary magnetic field.

• By,this same process we can generate electricity by the given copper wire (which will act as the conductor) and the strong bar magnet ( which will act as the magnetic field).

• This generated electricity is enough for lighting up the given bulb.