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 12.8 angle 20.6° V 3.84 angle 20.6° V 0.3 angle 20.6° V 13.84 angle 69.4° V 12.8 angle 20.6° V 3.84 angle 20.6° V 0.3 angle 20.6° V 13.84 angle 69.4° V 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 1526Ω 152.6Ω 1200Ω 942Ω 1526Ω 152.6Ω 1200Ω 942Ω 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 When the frequency of the voltage applied to a series RL circuit is increased, the phase angle does not change increases cannot be determined without values decreases does not change increases cannot be determined without values decreases 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 doubled decreased increased not a factor doubled decreased increased ANSWER DOWNLOAD EXAMIANS APP
RL Circuits To increase the current in a series RL circuit, the frequency should be increased should be decreased cannot be determined without values should be constant should be increased should be decreased cannot be determined without values should be constant ANSWER DOWNLOAD EXAMIANS APP
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