A Series RLC AC Circuit Is at Resonance

question 71

Multiple Choice

A series RLC AC circuit is at resonance.It contains a resistor of 23 Ω,a capacitor of 0.25 μF and an inductor of 119 mH.If an effective (rms) voltage of 177 V is applied,what is the effective (rms) current when the circuit is in resonance?

• A) 4.2 A
• B) 7.7 A
• C) 14 A
• D) 2.6 A
• E) ​28 A

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