A 12 k resistor is in series with a 90 mH coil across an 8 kHz ac sour – McqOptions

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1.	A 12 k 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 = 0.30° mA. The source voltage, expressed in polar form, is
A.	3.8420.6° V
B.	12.820.6° V
C.	0.320.6° V
D.	13.8469.4° V
Answer» B. 12.820.6° V

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