Question

Among the following situations, potential difference is induced in a closed conducting coil when?

• A. the closed coil is moved towards the bar magnet only
• B. either the bar magnet is moved towards the closed coil or the closed coil is moved towards the bar magnet
• C. both the bar magnet and the closed coil are moving with same speed and in the same direction
• D. a bar magnet is moved towards the closed coil only

Answer 1

Answer:

B. either the bar magnet is moved towards the closed coil or the closed coil is moved towards the bar magnet

• Potential difference is induced in a closed conducting coil when either the bar magnet is moved towards the closed coil or the closed coil is moved towards the bar magnet.

• This is due to the principle of electromagnetic induction, where a changing magnetic field induces an electromotive force (EMF), or voltage, in the coil.