Question

The power rating of a resistor is the maximum power it can safely dissipate without damage from overheating. A 15 kΩ resistor is connected across a 160 V potential difference. The power rating for the resistor must be at least _____.

A.0.011 W
B.8.3 W
C.1.7 W*
D.3.2 W

Answer 1

P= (V^2)/R
Power= voltage squared divided by resistance
P= (160^2)/15,000
P=1.7 W