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1. A series R-C circuit with R = 3 Ω and XC = 4 Ω at 50 Hz is supplied with a voltage V = 50 + 141.4 sin 314 t. What is the RMS value of the current flowing through the circuit?
(A): 10 A
(B): 20 A
(C): 22-36 A
(D): 5 A
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