Physicsmedium · Past Paper
How much heat is produced in a 5 Ohm resistor when 2 A current flows through it for 10 seconds?
A200 J
B100 J
C50 J
D20 J
✓ Correct Answer: A — 200 J
Heat (H) = I^2 * R * t = 2^2 * 5 * 10 = 4 * 5 * 10 = 200 Joules.
Share this question