Pure inductive circuit____________?
Correct answer: C. takes power from the line during some part of the cycle and then returns back to it during other part of the cycle
- A. consumes some power on average
- B. does not take power at all from a line
- C. takes power from the line during some part of the cycle and then returns back to it during other part of the cycle
- D. none of the above
Explanation
A pure inductor absorbs energy while the current is increasing and returns it to the source while the current is decreasing. Its average power over a complete cycle is zero, but it does exchange instantaneous power with the line.
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