Jack accidentally short-circuited his 12V battery, which has an internal resistance of 0.5 Ohms. At what rate is heat energy released from the short circuit?

Question

Quizplus · Accepted Answer

288 watts of heat will be released until the battery runs out of power. We can calculate the current flow first, with V = IR, and I = V/R. Thus, I = 24 amps. Wattage of a battery is equal to I * V. Thus, 24 *12 = 288 watts produced. As you can imagine, this amount of heat being released in a small area can be quite dangerous!

Jack Accidentally Short-Circuited His 12V Battery, Which Has an Internal