A 200-Ω resistor is rated at 1/4 W.What is the maximum current it can safely draw?
A)0.035 A
B)0.35 A
C)50 A
D)0.25 A

Question

Quizplus · Accepted Answer

The maximum current can be calculated using the power formula P = I^2 * R, where P is power in watts, I is current in amperes, and R is resistance in ohms. Rearranging the formula to solve for I gives I = sqrt(P/R). Substituting the given values (P = 1/4 W = 0.25 W, R = 200 Ω) yields I = sqrt(0.25 / 200) = sqrt(0.00125) = 0.035 A.

A 200-Ω Resistor Is Rated at 1/4 W