RC Circuits A 47Ω resistor and a capacitor with a capacitive reactance of 120 are in series across an ac source. What is the circuit impedance, Z? 129Ω 73Ω 12.9Ω 167Ω 129Ω 73Ω 12.9Ω 167Ω 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? 73.4 and θ = –19.5° 734 and θ = –38.9° 707 and θ = –19.5° 2121 and θ = –19.5° 73.4 and θ = –19.5° 734 and θ = –38.9° 707 and θ = –19.5° 2121 and θ = –19.5° ANSWER DOWNLOAD EXAMIANS APP
RC Circuits In a series RC circuit, when the frequency and the resistance are halved, the impedance is reduced to one-fourth is halved cannot be determined without values doubles is reduced to one-fourth is halved cannot be determined without values doubles ANSWER DOWNLOAD EXAMIANS APP
RC Circuits What is the value of the hypotenuse of a right triangle whose sides are 12 and 18? 3.46 2.16 21.63 4.24 3.46 2.16 21.63 4.24 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 increased has no effect must be decreased is held constant must be increased has no effect must be decreased is held constant 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 12 kHz 18 kHz 0 Hz 6 kHz 12 kHz 18 kHz 0 Hz ANSWER DOWNLOAD EXAMIANS APP
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