An AC Series Circuit Contains a Resistor of 20 Ω,An

question 22

Multiple Choice

An AC series circuit contains a resistor of 20 Ω,an inductor of 50 mH,and a variable capacitor.If the frequency of the applied voltage is 500 Hz,to what setting should the capacitor be set if resonance is achieved?

• A) 2.4 µF
• B) 3.4 µF
• C) 2.0 µF
• D) 0.8 µF

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