RC Circuits An ac circuit consists of a resistor and a capacitor. To increase the phase angle above 45°, the following condition must exist: R = 5XC R > XC R < XC R = XC R = 5XC R > XC R < XC R = XC ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 2 kΩ resistor and a 0.002 μF capacitor are in series across an ac source. Current in the circuit is 6.50 mA. The true power is 84.5 mW 13 mW 845 mW 130 mW 84.5 mW 13 mW 845 mW 130 mW ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 6 kHz sinusoidal voltage is applied to a series RC circuit. The frequency of the voltage across the resistor is 6 kHz 18 kHz 12 kHz 0 Hz 6 kHz 18 kHz 12 kHz 0 Hz ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 2 k resistor is in series with a 0.015 F capacitor across a 15 kHz ac source. What is the magnitude of the total impedance and the phase angle? 707 and θ = –19.5° 734 and θ = –38.9° 73.4 and θ = –19.5° 2121 and θ = –19.5° 707 and θ = –19.5° 734 and θ = –38.9° 73.4 and θ = –19.5° 2121 and θ = –19.5° ANSWER DOWNLOAD EXAMIANS APP
RC Circuits When the frequency of the voltage applied to a series RC circuit is decreased, the impedance decreases increases remains the same doubles decreases increases remains the same doubles ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A resistor and a capacitor are in series across a 20 V ac source. Circuit impedance is 4.33 k. Current flow in the circuit is 9.2 mA 460 mA 4.6 mA 92 mA 9.2 mA 460 mA 4.6 mA 92 mA ANSWER DOWNLOAD EXAMIANS APP
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