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° 73.4 and θ = –19.5° 734 and θ = –38.9° 2121 and θ = –19.5° 707 and θ = –19.5° 73.4 and θ = –19.5° 734 and θ = –38.9° 2121 and θ = –19.5° ANSWER DOWNLOAD EXAMIANS APP
RC Circuits What is the angular difference between +j4 and –j4? 90° 270° 180° 30° 90° 270° 180° 30° ANSWER DOWNLOAD EXAMIANS APP
RC Circuits The voltages in Problem 4 are measured at a certain frequency. To make the capacitor voltage greater than the resistor voltage, the frequency must be decreased must be increased has no effect is held constant must be decreased must be increased has no effect is held constant 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 130 mW 84.5 mW 13 mW 845 mW 130 mW 84.5 mW 13 mW 845 mW ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A positive angle of 30° is equivalent to a negative angle of –60° –180° –30° –330° –60° –180° –30° –330° ANSWER DOWNLOAD EXAMIANS APP
RC Circuits 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 angle 0° mA, what is the source voltage expressed in polar form? 0.411 V 4.11 V 45.6 V 411.3 V 0.411 V 4.11 V 45.6 V 411.3 V ANSWER DOWNLOAD EXAMIANS APP
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