

MCQOPTIONS
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1. |
A coil is designed for high Q performance at a rated voltage and a specified frequency. If the frequency is made twice the original and the coil is operated at the same rated voltage, then the active power P will be affected as ____________ |
A. | P is halved |
B. | P remains unchanged |
C. | P is doubled |
D. | P decreases 4 times |
Answer» E. | |