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 92 mA 460 mA 4.6 mA 9.2 mA 92 mA 460 mA 4.6 mA 9.2 mA 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 increased has no effect must be decreased is held constant must be increased has no effect must be decreased is held constant 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 doubles decreases increases remains the same doubles decreases increases ANSWER DOWNLOAD EXAMIANS APP
RC Circuits Point +4 on the complex plane is 4 units above the origin on the j axis 4 units below the origin on the j axis 4 units right of the origin on the real axis 4 units left of the origin on the real axis 4 units above the origin on the j axis 4 units below the origin on the j axis 4 units right of the origin on the real axis 4 units left of the origin on the real axis ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A positive angle of 30° is equivalent to a negative angle of –60° –180° –30° –330° –60° –180° –30° –330° 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? 37.9Ω 4800Ω 3.7Ω 14400Ω 37.9Ω 4800Ω 3.7Ω 14400Ω ANSWER DOWNLOAD EXAMIANS APP
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