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 = 5XC R = XC R > XC R < XC R = 5XC R = XC ANSWER DOWNLOAD EXAMIANS APP
RC Circuits When the frequency of the voltage applied to a series RC circuit is increased, the phase angle decreases becomes erratic increases remains the same decreases becomes erratic increases remains the same 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 12 kHz 18 kHz 6 kHz 0 Hz 12 kHz 18 kHz 6 kHz 0 Hz ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A capacitor with 150Ω of capacitive reactance is across an ac source. The impedance, expressed in polar form, is Z = 150 angle – 90° Ω Z = 150 –90° Ω Z = 150 Z = 150 angle 180° Ω Z = 150 angle – 90° Ω Z = 150 –90° Ω Z = 150 Z = 150 angle 180° Ω ANSWER DOWNLOAD EXAMIANS APP
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 411.3 V 45.6 V 0.411 V 4.11 V 411.3 V 45.6 V 0.411 V ANSWER DOWNLOAD EXAMIANS APP
RC Circuits What is the angular difference between +j4 and –j4? 180° 270° 90° 30° 180° 270° 90° 30° ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS