A series circuit has a 50-Hz ac source, a 40-? resistor, a 0.70-H inductor, and a 60-?F 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
Answer: A
Physics & Space Science
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