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° 120 angle 68.6° 47 angle 68.6° 129 angle 31.4° 129 angle 68.6° 120 angle 68.6° 47 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 cannot be determined decreases is not affected increases cannot be determined decreases is not affected increases ANSWER DOWNLOAD EXAMIANS APP
RL Circuits To increase the current in a series RL circuit, the frequency 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 should be increased ANSWER DOWNLOAD EXAMIANS APP
RL Circuits Referring to Problem 23, the reactive power is 6.76 mVAR 148 mVAR 10 mVAR 100 mVAR 6.76 mVAR 148 mVAR 10 mVAR 100 mVAR ANSWER DOWNLOAD EXAMIANS APP
RL Circuits Which of the following power factors results in less energy loss in an RL circuit? 0.8 1 0.4 0.2 0.8 1 0.4 0.2 ANSWER DOWNLOAD EXAMIANS APP
RL Circuits If the frequency is halved and the resistance is doubled, the impedance of a series RL circuit cannot be determined without values halves remains constant doubles cannot be determined without values halves remains constant doubles ANSWER DOWNLOAD EXAMIANS APP