CUET Preparation Today
CUET
Physics
Electromagnetic Induction
When coil rotates under the effect of magnetic field in an AC generator, which of the following happens?
The area of the coil changes.
The effective area of the coil under the magnetic field changes.
The magnetic field of the magnets decreases.
The angular momentum increases.
Only the effective area varies. Effective area is the area through which the magnetic field lines pass.
