1.

In an R-L circuit, the impedance is 30 Ω at a frequency of 100 Hz. At 200 Hz, the impedance should be

A. 30 Ω or more
B. 60 Ω or more
C. 15 Ω or less
D. more than 30 Ω but less than 60 Ω
Answer» E.


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