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 has no effect is held constant must be increased must be decreased has no effect is held constant must be increased must be decreased 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? 2121 and θ = –19.5° 734 and θ = –38.9° 73.4 and θ = –19.5° 707 and θ = –19.5° 2121 and θ = –19.5° 734 and θ = –38.9° 73.4 and θ = –19.5° 707 and θ = –19.5° ANSWER DOWNLOAD EXAMIANS APP
RC Circuits When the frequency of the source voltage decreases, the impedance of a parallel RC circuit decreases decreases to zero does not change increases decreases decreases to zero does not change increases ANSWER DOWNLOAD EXAMIANS APP
RC Circuits In a series RC circuit, when the frequency and the resistance are halved, the impedance cannot be determined without values is halved is reduced to one-fourth doubles cannot be determined without values is halved is reduced to one-fourth doubles ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A positive angle of 30° is equivalent to a negative angle of –60° –30° –180° –330° –60° –30° –180° –330° 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 92 mA 4.6 mA 9.2 mA 460 mA 92 mA 4.6 mA ANSWER DOWNLOAD EXAMIANS APP
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