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Electric Circuits

Electric Circuits
The value of specific gravity of acid when a lead acid battery is fully charged is

 1.285.
 2.585.
 2.9585.
 2.185.

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Electric Circuits
A periodic voltage having the Fourier series V(t)= {1 + 4sinω0t}

 11 W.
 24.5 W.
 1 W.
 21 W.

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Electric Circuits
Common impurity in battery electrolyte is

 sodium chloride.
 iron.
 lead sulfate.
 dust.

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Electric Circuits
Which of the following Y-parameters is dimensionless?

 none of these.
 Y11.
 Y22.
 Y12.

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

 Lagging
 Leading
 Zero
 Unity

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Electric Circuits
An electrical motor has rating of 10 MVA at 0.8 lag, represented as series RL circuit at a 50 MVA base. Find the impedance value?

 (2 + j4) pu
 (4 + j3) pu
 (3 + j4) pu
 (4 + j2 ) pu

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