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? 4.11 V 45.6 V 0.411 V 411.3 V 4.11 V 45.6 V 0.411 V 411.3 V ANSWER DOWNLOAD EXAMIANS APP
RC Circuits When the frequency of the voltage applied to a series RC circuit is decreased, the impedance remains the same increases doubles decreases remains the same increases doubles decreases ANSWER DOWNLOAD EXAMIANS APP
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 < XC R = XC R > XC R = 5XC R < XC R = XC R > XC R = 5XC ANSWER DOWNLOAD EXAMIANS APP
RC Circuits What is the angular difference between +j4 and –j4? 270° 30° 90° 180° 270° 30° 90° 180° 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 130 mW 845 mW 13 mW 84.5 mW 130 mW 845 mW 13 mW ANSWER DOWNLOAD EXAMIANS APP
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 12.9Ω 167Ω 73Ω 129Ω 12.9Ω 167Ω 73Ω ANSWER DOWNLOAD EXAMIANS APP
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