If the voltage drop across a resistor is 12.5 V and the resistance is 250 ohms, what is the power dissipated in watts?
A) 0.125
B) 0.375
C) 0.500
D) 0.625

Question

Quizplus · Accepted Answer

The power dissipated in a resistor can be calculated using the formula P = V^2 / R, where P is the power in watts, V is the voltage across the resistor in volts, and R is the resistance in ohms. Substituting the given values, P = (12.5)^2 / 250 = 156.25 / 250 = 0.625 watts.

If the Voltage Drop Across a Resistor Is 12