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Electrical Engineering
RL Circuits
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Q.1
The phase angle (?) of a series RL circuit varies directly with frequency.
True
False
Q.2
The power factor indicates how much of the apparent power is reactive power.
True
False
Q.3
If a load is purely inductive and the reactive power is 12 VAR, the apparent power is
0 VA
12 VA
6 VA
24 VA
Q.4
A 140 Ω resistor is in parallel with an inductor having 60 Ω inductive reactance. Both components are across a 12 V ac source. The magnitude of the total impedance is
5.51 Ω
55.15 Ω
90 Ω
200 Ω
0 h : 0 m : 1 s
1
2
3
4
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