Question Detail

PHY 102 Electromagnetic Induction Objective Question

Question

What is the source of the induced emf in a moving conductor?
Options
A Magnetic force on free charges in the conductor
Correct Answer
B Electric force from a battery
C Thermal energy
D Chemical reaction
Correct Answer

Option A is the correct answer.

Detailed Explanation

The magnetic force (F = qvB) on free charges (electrons) in the moving conductor separates charges, creating an electric field and thus an emf.

Hint

Lorentz force on moving charges.

Question Info