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Question

A resistance (R)=12Ω; inductance (L)=2 henry and capacitive reactance C=5mF are connected in series to an ac generator, then:

A
at resonance, the circuit impedance is zero
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B
at resonance, the circuit impedance is 12Ω
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C
the resonance frequency of the circuit is 1/2π
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D
at resonance, the inductive reactance is less than the capacitive reactance
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