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 12 kHz 6 kHz 0 Hz 18 kHz 12 kHz 6 kHz 0 Hz 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 2.12 mS + j3.14 mS 3.14 mS + j2.12 mS 212 318.3 2.12 mS + j3.14 mS 3.14 mS + j2.12 mS 212 318.3 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 845 mW 13 mW 84.5 mW 130 mW 845 mW 13 mW 84.5 mW 130 mW ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 47Ω resistor and a capacitor with 150Ω of capacitive reactance are in series across an ac source. The impedance, expressed in rectangular form, is Z = 47Ω – j150Ω Z = 103Ω Z = 197Ω Z = 47Ω + j150Ω Z = 47Ω – j150Ω Z = 103Ω Z = 197Ω Z = 47Ω + j150Ω 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 = 5XC R > XC R < XC R = XC R = 5XC R > XC R < XC R = XC ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 120Ω resistor is in parallel with a capacitor with a capacitive reactance of 40 Ω. Both components are across a 12 V ac source. What is the magnitude of the total impedance? 4800Ω 14400Ω 3.7Ω 37.9Ω 4800Ω 14400Ω 3.7Ω 37.9Ω ANSWER DOWNLOAD EXAMIANS APP