What would be the total current in figure "A" of the circuit illustrated if the value of capacitor C1 was 100 microfarads, capacitor C2 was 200 microfarads and the power supply was 240 volts at 60 Hz? EL-0038
Official USCG Answer & Rule Citation
Correct Answer: Option A — 27 amps
Total capacitance is 300 microfarads (0.0003 F). Capacitive reactance Xc = 1 / (2 * pi * f * C) equals 8.84 ohms. Total current I = V / Xc = 240 / 8.84 = 27.15 amps, which rounds to 27 amps under IEEE 45 marine guidelines.
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