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Electric Circuits

Electric Circuits
In series RLC circuit what is the power factor just bellow the resonance frequency?

 Zero
 Leading
 Unity
 Lagging

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Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The phase angle of current in respect of supply voltage will be

 32.1o.
 28.8o.
 40.4o.
 20.2o.

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Electric Circuits
The form factor of sinusoidal alternating current is

 1.
 1.15.
 0.
 1.11.

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Electric Circuits
Reactive power drawn by a pure resistor is

 minimum
None of these
 maximum
 0

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Electric Circuits
The lead acid cell should not never be discharged beyond

 2.1 V
 1.8 V.
 2 V.
 1.9 V.

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Electric Circuits
1 F is theoretically equal to

 ratio of 1 V to 1 C
 none of these
 ratio of 1 C to 1 V
 1 ohm of resistance

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