In a pure capacitive circuit if the supply frequency is reduced to 1/2, the current will__________?
Correct answer: A. be reduced by half
- A. be reduced by half
- B. be doubled
- C. be four times at high
- D. be reduced to one fourth
Explanation
For a pure capacitor, Xc = 1/(2πfC), so halving frequency doubles the capacitive reactance. Since I = V/Xc, the current is reduced by half.
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