Which of the following devices is based on the principle of electromagnetic induction?

AElectric motor

BElectric fan

CElectric bulb

DElectric generator

Answer:

Electromagnetic induction is the production of an electromotive force (voltage) across an electrical conductor in a changing magnetic field.
Electric generators work on this principle.Electric generators are a prime example of devices that operate based on the principle of electromagnetic induction.
They typically consist of coils of wire that are mechanically rotated within a magnetic field.
This rotation causes the magnetic flux through the coils to continuously change, inducing an electromotive force (voltage) and consequently generating an electric current.
The mechanical energy used to rotate the coils is converted into electrical energy through this process.

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