A Series Circuit Consists of Ac Source,a 90-Ω Resistor,a 0

question 49

Multiple Choice

A series circuit consists of ac source,a 90-Ω resistor,a 0.80-H inductor,and an 80-μF capacitor.The frequency of the source is adjusted so that the capacitive reactance is equal to twice the inductive reactance.What is the frequency of the source?

• A) 14 Hz
• B) 13 Hz
• C) 16 Hz
• D) 17 Hz
• E) 19 Hz

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