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 120 angle 68.6° 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° ANSWER DOWNLOAD EXAMIANS APP
RL Circuits When the frequency of the voltage applied to a series RL circuit is decreased, the impedance does not change increases decreases cannot be determined without values does not change increases decreases cannot be determined without values 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 13.84 angle 69.4° V 3.84 angle 20.6° V 0.3 angle 20.6° V 12.8 angle 20.6° V 13.84 angle 69.4° V 3.84 angle 20.6° V 0.3 angle 20.6° V 12.8 angle 20.6° V ANSWER DOWNLOAD EXAMIANS APP
RL Circuits If a load is purely inductive and the reactive power is 12 VAR, the apparent power is 0 VA 6 VA 24 VA 12 VA 0 VA 6 VA 24 VA 12 VA ANSWER DOWNLOAD EXAMIANS APP
RL Circuits When the frequency of the voltage applied to a series RL circuit is increased, the phase angle decreases increases cannot be determined without values does not change decreases increases cannot be determined without values does not change 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 120 mA 32 mA 12 mA 152 mA 120 mA 32 mA 12 mA ANSWER DOWNLOAD EXAMIANS APP
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