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 47 angle 68.6° 129 angle 31.4° 129 angle 68.6° 120 angle 68.6° 47 angle 68.6° 129 angle 31.4° 129 angle 68.6° 120 angle 68.6° ANSWER DOWNLOAD EXAMIANS APP
RL Circuits When the resistor voltage in a series RL circuit becomes less than the inductor voltage, the phase angle increases decreases is not affected cannot be determined increases decreases is not affected cannot be determined 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 942Ω 152.6Ω 1200Ω 1526Ω 942Ω 152.6Ω 1200Ω 1526Ω ANSWER DOWNLOAD EXAMIANS APP
RL Circuits When the frequency is decreased, the impedance of a parallel RL circuit decreases increases is not a factor remains constant decreases increases is not a factor remains constant ANSWER DOWNLOAD EXAMIANS APP
RL Circuits If a load is purely inductive and the reactive power is 12 VAR, the apparent power is 24 VA 6 VA 12 VA 0 VA 24 VA 6 VA 12 VA 0 VA ANSWER DOWNLOAD EXAMIANS APP
RL Circuits When the frequency of the voltage applied to a series RL circuit is decreased, the impedance cannot be determined without values does not change decreases increases cannot be determined without values does not change decreases increases ANSWER DOWNLOAD EXAMIANS APP
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