Question

The heater has a resistnce of 3 ohm. The voltage cource has an emf of 12v and an internal resistnce of 1ohm at whch rate does the voltage source supply energy to the heater
A:27w
B:36w
C:48w
D:64w​

Answer 1

Answer:

36 Watt

Explanation:

power=V×I

current = V/R=12/4=3A

POWER= V×I=12×3= 36 Watt