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 68.6° 129 angle 31.4° 47 angle 68.6° 120 angle 68.6° 129 angle 68.6° 129 angle 31.4° 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 decreases cannot be determined without values does not change increases decreases cannot be determined without values does not change ANSWER DOWNLOAD EXAMIANS APP
RL Circuits Referring to Problem 23, the reactive power is 6.76 mVAR 10 mVAR 100 mVAR 148 mVAR 6.76 mVAR 10 mVAR 100 mVAR 148 mVAR 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 increased not a factor decreased doubled increased not a factor decreased doubled ANSWER DOWNLOAD EXAMIANS APP
RL Circuits If a load is purely inductive and the reactive power is 12 VAR, the apparent power is 12 VA 24 VA 6 VA 0 VA 12 VA 24 VA 6 VA 0 VA ANSWER DOWNLOAD EXAMIANS APP
RL Circuits A 470Ω resistor and a 200 mH coil are in parallel. Both components are across a 1.5 kHz ac source. The total admittance of the circuit, in polar form, is 12.18 angle –76° mS 218 angle –76° mS 12.18 angle 76° mS 12.60 angle –76° mS 12.18 angle –76° mS 218 angle –76° mS 12.18 angle 76° mS 12.60 angle –76° mS ANSWER DOWNLOAD EXAMIANS APP
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