1.

A series R, L, C circuit has R = 2Ω, L = 1H, C = 1 μF. It is connected to an ac variable frequency source of peak voltage 10 V. At resonance the power supplied by the source will be

A. 50 Ω
B. 25 Ω
C. 12.5 Ω
D. 6.25 Ω
Answer» C. 12.5 Ω


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