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Question
A 12 kΩ resistor is in series with a 90 mH coil across an 8 kHz ac source. Current flow in the circuit, expressed in polar form, is I = 0.3 angle 0° mA. The source voltage, expressed in polar form, is
Options:
A .  3.84 angle 20.6° V
B .  0.3 angle 20.6° V
C .  13.84 angle 69.4° V
D .  12.8 angle 20.6° V
Answer: Option A

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