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 31.4° 129 angle 68.6° 47 angle 68.6° 120 angle 68.6° 129 angle 31.4° 129 angle 68.6° 47 angle 68.6° 120 angle 68.6° ANSWER DOWNLOAD EXAMIANS APP
RL Circuits When the frequency of the voltage applied to a series RL circuit is increased, the phase angle 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 A 470Ω resistor and a coil with 125Ω inductive reactance are in parallel. Both components are across a 15 V ac voltage source. Current through the inductor is 152 mA 32 mA 120 mA 12 mA 152 mA 32 mA 120 mA 12 mA ANSWER DOWNLOAD EXAMIANS APP
RL Circuits In a parallel RL circuit, there are 3 A rms in the resistive branch and 3 A rms in the inductive branch. The total rms current is 424 mA 6 A 4.24 A 42.4 A 424 mA 6 A 4.24 A 42.4 A ANSWER DOWNLOAD EXAMIANS APP
RL Circuits If the frequency is halved and the resistance is doubled, the impedance of a series RL circuit doubles cannot be determined without values remains constant halves doubles cannot be determined without values remains constant halves 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 55.7 564 0.564 6.76 55.7 564 0.564 6.76 ANSWER DOWNLOAD EXAMIANS APP
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