RC Circuits When the frequency of the source voltage decreases, the impedance of a parallel RC circuit increases decreases to zero does not change decreases increases decreases to zero does not change decreases 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 In the complex plane, the number 14 – j5 is located in the first quadrant third quadrant second quadrant fourth quadrant first quadrant third quadrant second quadrant fourth quadrant 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 37.9Ω 14400Ω 3.7Ω 4800Ω 37.9Ω 14400Ω 3.7Ω 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 is held constant has no effect must be increased must be decreased is held constant has no effect must be increased ANSWER DOWNLOAD EXAMIANS APP
RC Circuits When the frequency of the voltage applied to a series RC circuit is increased, the phase angle increases becomes erratic remains the same decreases increases becomes erratic remains the same decreases ANSWER DOWNLOAD EXAMIANS APP
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