RC Circuits Point +4 on the complex plane is 4 units right of the origin on the real axis 4 units above the origin on the j axis 4 units left of the origin on the real axis 4 units below the origin on the j axis 4 units right of the origin on the real axis 4 units above the origin on the j axis 4 units left of the origin on the real axis 4 units below the origin on the j axis 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 –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 Z = 150 angle – 90° Ω 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 must be increased is held constant has no effect must be decreased must be increased is held constant has no effect ANSWER DOWNLOAD EXAMIANS APP
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 73Ω 167Ω 129Ω 12.9Ω 73Ω 167Ω 129Ω ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A positive angle of 30° is equivalent to a negative angle of –60° –30° –330° –180° –60° –30° –330° –180° ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 2 kΩ resistor and a 0.002 μF capacitor are in series across an ac source. Current in the circuit is 6.50 mA. The true power is 13 mW 130 mW 845 mW 84.5 mW 13 mW 130 mW 845 mW 84.5 mW ANSWER DOWNLOAD EXAMIANS APP
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