RL Circuits When the frequency of the voltage applied to a series RL circuit is increased, the phase angle increases cannot be determined without values does not change decreases increases cannot be determined without values does not change decreases ANSWER DOWNLOAD EXAMIANS APP
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° 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° 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 doubled decreased not a factor increased doubled decreased not a factor 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 12.18 angle –76° mS 12.60 angle –76° mS 218 angle –76° mS 12.18 angle 76° mS 12.18 angle –76° mS 12.60 angle –76° mS 218 angle –76° mS ANSWER DOWNLOAD EXAMIANS APP
RL Circuits When the frequency is decreased, the impedance of a parallel RL circuit remains constant is not a factor increases decreases remains constant is not a factor increases decreases ANSWER DOWNLOAD EXAMIANS APP
RL Circuits In a series RL circuit, 12 V rms is measured across the resistor, and 14 V rms is measured across the inductor. The peak value of the source voltage is 2 V 20 V 18.4 V 26.0 V 2 V 20 V 18.4 V 26.0 V ANSWER DOWNLOAD EXAMIANS APP
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