RC Circuits A capacitor with 150Ω of capacitive reactance is across an ac source. The impedance, expressed in polar form, is Z = 150 angle 180° Ω Z = 150 angle – 90° Ω Z = 150 Z = 150 –90° Ω Z = 150 angle 180° Ω Z = 150 angle – 90° Ω Z = 150 Z = 150 –90° Ω 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 18 kHz 6 kHz 12 kHz 0 Hz 18 kHz 6 kHz 12 kHz 0 Hz ANSWER DOWNLOAD EXAMIANS APP
RC Circuits For a certain load, the true power is 150 W and the reactive power is 125 VAR. The apparent power is 25 W 275 W 19.52 W 195.2 W 25 W 275 W 19.52 W 195.2 W 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 doubles is halved cannot be determined without values is reduced to one-fourth doubles is halved cannot be determined without values ANSWER DOWNLOAD EXAMIANS APP
RC Circuits When the frequency of the source voltage decreases, the impedance of a parallel RC circuit does not change decreases to zero decreases increases does not change decreases to zero decreases increases ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 470 resistor and a 0.2 F capacitor are in parallel across a 2.5 kHz ac source. The admittance, Y, in rectangular form, is 3.14 mS + j2.12 mS 212 318.3 2.12 mS + j3.14 mS 3.14 mS + j2.12 mS 212 318.3 2.12 mS + j3.14 mS ANSWER DOWNLOAD EXAMIANS APP
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