The power dissipated in a 4-ohm resistor carrying 3 A is
A)7 W.
B)18 W.
C)36 W.
D)48 W.
E)need more information

Name: The power dissipated in a 4-ohm resistor carrying 3 A is A)7 W. B)18 W. C)36 W. D)48 W. E)need more information
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Question

Quizplus · Accepted Answer

We can use the formula P = I^2R, where P is power, I is current, and R is resistance. Substituting 3 A for I and 4 ohms for R, we get P = (3 A)^2 x 4 ohms = 36 W. Therefore, the answer is C.

The Power Dissipated in a 4-Ohm Resistor Carrying 3 a Is