Electrical Engineering - RL Circuits

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Exercise : RL Circuits - General Questions
1.
A 1.5 k resistor and a coil with a 2.2 k inductive reactance are in series across an 18 V ac source. The power factor is
564
0.564
6.76
55.7
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
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
decreased
doubled
not a factor
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
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
18.4 V
26.0 V
2 V
20 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
To increase the current in a series RL circuit, the frequency
should be increased
should be decreased
should be constant
cannot be determined without values
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
A 470 resistor and a coil with 125 inductive reactance are in parallel. Both components are across a 15 V ac voltage source. Current through the inductor is
152 mA
32 mA
12 mA
120 mA
Answer: Option
Explanation:
No answer description is available. Let's discuss.