What is the resistance of a 120-W incandescent lamp connected to a 120-V power supply?
A)1 ohm
B)60 ohms
C)100 ohms
D)144 ohms
E)none of the above

Question

Quizplus · Accepted Answer

The resistance can be calculated using the formula $R = \frac{V^2}{P}$, where $V$ is the voltage and $P$ is the power. Substituting the given values, $R = \frac{120^2}{120} = 120$ ohms, which is not listed among the options.

What Is the Resistance of a 120-W Incandescent Lamp Connected