Question Detail

PHY 102 Test Compilation PHY 102 8 Objective Question

Question

The emf of a battery equals its terminal potential difference:
Options
A under all conditions
B only when being charged
C only when large current flows
D only when no current flows
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

V_terminal = E - Ir. When I=0 (open circuit), V = E.

Hint

No current → V = EMF.

Question Info