A Series Circuit Has a 50-Hz Ac Source, a 40-Ω

question 57

Multiple Choice

A series circuit has a 50-Hz ac source, a 40-Ω resistor, a 0.70-H inductor, and a 60-μF capacitor, as shown in the figure. The rms current in the circuit is 1.6 A. What is the voltage amplitude of the source?

• A)390 V
• B)330 V
• C)270 V
• D)220 V
• E)190 V

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