RL Circuits When the frequency of the voltage applied to a series RL circuit is decreased, the impedance does not change cannot be determined without values decreases increases does not change cannot be determined without values decreases increases ANSWER DOWNLOAD EXAMIANS APP
RL Circuits A 12 kΩ resistor is in series with a 90 mH coil across an 8 kHz ac source. Current flow in the circuit, expressed in polar form, is I = 0.3 angle 0° mA. The source voltage, expressed in polar form, is 3.84 angle 20.6° V 13.84 angle 69.4° V 12.8 angle 20.6° V 0.3 angle 20.6° V 3.84 angle 20.6° V 13.84 angle 69.4° V 12.8 angle 20.6° V 0.3 angle 20.6° V ANSWER DOWNLOAD EXAMIANS APP
RL Circuits A 1.5 kΩ resistor and a coil with a 2.2 kΩ inductive reactance are in series across an 18 V ac source. The power factor is 564 0.564 6.76 55.7 564 0.564 6.76 55.7 ANSWER DOWNLOAD EXAMIANS APP
RL Circuits The voltages in Problem 5 are measured at a certain frequency. To make the resistor voltage less than the inductor voltage, the frequency is not a factor increased doubled decreased not a factor increased doubled decreased ANSWER DOWNLOAD EXAMIANS APP
RL Circuits When the frequency is decreased, the impedance of a parallel RL circuit increases remains constant is not a factor decreases increases remains constant is not a factor decreases ANSWER DOWNLOAD EXAMIANS APP
RL Circuits A 470Ω resistor and a 200 mH coil are in parallel. Both components are across a 1.5 kHz ac source. The total admittance of the circuit, in polar form, is 12.18 angle –76° mS 12.18 angle 76° mS 12.60 angle –76° mS 218 angle –76° mS 12.18 angle –76° mS 12.18 angle 76° mS 12.60 angle –76° mS 218 angle –76° mS ANSWER DOWNLOAD EXAMIANS APP
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