A pure capacitor connected across an A.C. voltage consumed 50 W. This is due to________?
Correct answer: D. the statement is incorrect
- A. the capacitive reactance in ohms
- B. the current flowing in capacitor
- C. the size of the capacitor being quite big
- D. the statement is incorrect
Explanation
An ideal pure capacitor has a 90° phase angle, so its average power is VI cos 90° = 0 W. A reading of 50 W would therefore contradict the stated pure-capacitor condition.
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