Q. A storage battery has e.m.f. $15\ volt$ and internal resistance $0.05\ ohm.$ Its terminal voltage when it is delivering $10\ ampere$ is
A) $30\ volt$
B) $1.00\ volt$
C) $14.5\ volt$
D) $15.5\ volt$
Explanation
(c) $V = E - IR = 15 - 10 \times 0.05 = 14.5V$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.