A capacitor draws 0.50 A from a 50 Hz supply. The frequency is changed to 100 Hz with the same rms voltage. What current does it now draw?
Correct answer C. 1.0 A
Explanation
X_C = 1/(2πfC) halves when frequency doubles. With the same voltage, I = V/X_C doubles, so the current becomes 1.0 A.
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