Question

The power is an electrical circuit is given by the equation P = i^2R, where I is the current flowing through the circuit and R is the resistance of the circuit. What is the power in a circuit that has a current of 0.1 amps and a resistance of 18 ohms?

A. 1.8 watts
B. 0.1 watts
C. 180 watts
D. 0.18 watts

Answer 1

P=RI²=18*0,1²=18*0,01=0,18 W

Answer 2

Formula

Power = I^2 * R

Givens

R = 18 ohms

I = 0.1 amperes.

Solution

P = 0.1^2 * 18

P = 0.01 * 18

P = 0.18 watts.

D <<<< Answer