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A 12 kΩ resistor is in series with a 0.02 µF capacitor across a 1.2 kHz ac source. If the current is expressed in polar form as I = 0.3∠0° mA, what is the source voltage expressed in polar form?

45.6 V
411.3 V
0.411 V
4.11 V

Correct Answer: 4.11 V

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