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 increases remains the same decreases becomes erratic increases remains the same decreases becomes erratic ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A resistor and a capacitor are in series across a 20 V ac source. Circuit impedance is 4.33 k. Current flow in the circuit is 9.2 mA 92 mA 4.6 mA 460 mA 9.2 mA 92 mA 4.6 mA 460 mA ANSWER DOWNLOAD EXAMIANS APP
RC Circuits When the frequency of the source voltage decreases, the impedance of a parallel RC circuit decreases decreases to zero does not change increases decreases decreases to zero does not change increases 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 decreased has no effect is held constant must be increased must be decreased has no effect is held constant must be increased 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 318.3 212 2.12 mS + j3.14 mS 3.14 mS + j2.12 mS 318.3 212 2.12 mS + j3.14 mS ANSWER DOWNLOAD EXAMIANS APP
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