Question

When 30 V is applied across a resistor it generates 600 W of heat: what is the magnitude of its resistance?

Answer 1

Answer:

1.5 ohms

Explanation:

Power is expressed as P = V²/R

R = resistance

V = supplied voltage

Given P = 600W and V = 30V

R = V²/P

R = 30²/600

R = 900/600

R = 1.5ohms

magnitude of its resistance is 1.5ohms