Question

An AC generator works on the principle of?

• A. electromagnetism
• B. heating effect of electric current
• C. electromagnetic induction
• D. force on a current carrying conductor

Answer 1

Answer:

C. electromagnetic induction

• An AC generator operates based on the principle of electromagnetic induction, where a changing magnetic field induces an electric current.

• When the armature rotates between the magnet's poles upon an axis perpendicular to the magnetic field, the flux linkage of the armature changes continuously.

• Due to this, an emf is induced in the armature.