What is electromagnetic induction?...

What is electromagnetic induction?

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The process by which a changing magnetic field in a conductor induces a current in another conductor is called electromagnetic induction. A current can be induced in a conductor either by moving it in a magnetic field or by changing the magnetic field around the conductor.

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Which of the following phenomenon makes use of electromagnetic induction?

Magnetising an iron piece with a bar magnet

Magnetising a soft iron by placing it inside a current carrying solenoid

charging a storage battery

Generation of hydro electricity

According to Lenz's law of electromagnetic induction

the induced emf Es not in the direction opposing the change in magnetic flux

the relative motion between the coll and magnet produces change In magnetic flux

only magnet should be moved towards coll

only coll should be moved towards magnet

According to Faraday's law of electromagnetic induction

The direction of induced current is such that it opposes the cause producing it

The magnitude of induced e.m.f. produced in a coil is directly proportional to the rate of change of magnetic flux

The direction of induced e.m.f. is such that it opposes the cause producing it

None of the above