Rl Circuits - Study Mode
[#16] In an RL circuit, part of the power is resistive and part is reactive.
Correct Answer
(A) True
[#17] A 3.3 kΩ resistor and a 120 mH coil are in parallel. Both components are across a 2 kHz, 12 V ac source. The total current in the circuit is
Correct Answer
(A) 8.74 mA
[#18] A 470 Ω resistor and a coil with 125 Ω inductive reactance are in parallel. Both components are across a 15 V ac voltage source. Current through the inductor is
Correct Answer
(D) 120 mA
[#19] The power factor indicates how much of the apparent power is reactive power.
Correct Answer
(B) False
[#20] If the frequency is halved and the resistance is doubled, the impedance of a series RL circuit
Correct Answer
(D) Cannot be determined without values