RC Circuits A 47Ω resistor and a capacitor with 150Ω of capacitive reactance are in series across an ac source. The impedance, expressed in rectangular form, is Z = 197Ω Z = 47Ω + j150Ω Z = 47Ω – j150Ω Z = 103Ω Z = 197Ω Z = 47Ω + j150Ω Z = 47Ω – j150Ω Z = 103Ω ANSWER DOWNLOAD EXAMIANS APP
RC Circuits When the frequency of the source voltage decreases, the impedance of a parallel RC circuit increases does not change decreases decreases to zero increases does not change decreases decreases to zero ANSWER DOWNLOAD EXAMIANS APP
RC Circuits The complex number 40 angle 55° is equivalent to 22.94 + j32.76 45.88 + j65.52 40 + j40 55 + j55 22.94 + j32.76 45.88 + j65.52 40 + j40 55 + j55 ANSWER DOWNLOAD EXAMIANS APP
RC Circuits A 6 kHz sinusoidal voltage is applied to a series RC circuit. The frequency of the voltage across the resistor is 18 kHz 0 Hz 6 kHz 12 kHz 18 kHz 0 Hz 6 kHz 12 kHz 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 Z = 150 angle 180° Ω Z = 150 angle – 90° Ω Z = 150 –90° Ω Z = 150 Z = 150 angle 180° Ω Z = 150 angle – 90° Ω ANSWER DOWNLOAD EXAMIANS APP
RC Circuits In a parallel RC circuit, there is 100 mA through the resistive branch and 100 mA through the capacitive branch. The total rms current is 200 mA 141 mA 282 mA 100 mA 200 mA 141 mA 282 mA 100 mA ANSWER DOWNLOAD EXAMIANS APP
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