RL Circuits A 47Ω resistor is in series with an inductive reactance of 120Ω across an ac source. The impedance, expressed in polar form, is 129 angle 68.6° 120 angle 68.6° 129 angle 31.4° 47 angle 68.6° 129 angle 68.6° 120 angle 68.6° 129 angle 31.4° 47 angle 68.6° 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 218 angle –76° mS 12.60 angle –76° mS 12.18 angle –76° mS 12.18 angle 76° mS 218 angle –76° mS 12.60 angle –76° mS 12.18 angle –76° mS ANSWER DOWNLOAD EXAMIANS APP
RL Circuits A 1.2 kΩ resistor is in series with a 15 mH coil across a 10 kHz ac source. The magnitude of the total impedance is 1200Ω 152.6Ω 942Ω 1526Ω 1200Ω 152.6Ω 942Ω 1526Ω 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 6.76 0.564 55.7 564 6.76 0.564 55.7 ANSWER DOWNLOAD EXAMIANS APP
RL Circuits When the frequency of the voltage applied to a series RL circuit is decreased, the impedance increases does not change decreases cannot be determined without values increases does not change decreases cannot be determined without values ANSWER DOWNLOAD EXAMIANS APP
RL Circuits When the frequency is decreased, the impedance of a parallel RL circuit is not a factor decreases remains constant increases is not a factor decreases remains constant increases ANSWER DOWNLOAD EXAMIANS APP
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