RC Circuits A 47Ω resistor and a capacitor with a capacitive reactance of 120 are in series across an ac source. What is the circuit impedance, Z? 12.9Ω 129Ω 167Ω 73Ω 12.9Ω 129Ω 167Ω 73Ω 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 212 318.3 3.14 mS + j2.12 mS 2.12 mS + j3.14 mS 212 318.3 3.14 mS + j2.12 mS 2.12 mS + j3.14 mS ANSWER DOWNLOAD EXAMIANS APP
RC Circuits When the frequency of the voltage applied to a series RC circuit is decreased, the impedance increases decreases doubles remains the same increases decreases doubles remains the same 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 angle 180° Ω Z = 150 Z = 150 angle – 90° Ω Z = 150 –90° Ω Z = 150 angle 180° Ω Z = 150 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 Point +4 on the complex plane is 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 4 units above the origin on the j axis 4 units below the origin on the j axis ANSWER DOWNLOAD EXAMIANS APP
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