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Electric Circuits

Electric Circuits
The Laplace Transform of a shifted unit step f (t) = U (t-a) is

 se-as.
 s(1-e-as).
 (e-as)/s.
 e-as.

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Electric Circuits
In the circuit shown in the figure, the value of Vs is 0, when I = 4 A. The value of I, when Vs = 16 V, is

 8 A.
 12 A.
 10 A.
 6 A.

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Electric Circuits
A 50 μF capacitor is charged to retain 10 MJ of energy by a constant charging current of 1 A. Determine the voltages across the capacitor?

 50 V.
 60 V.
 30 V.
 20 V.

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Electric Circuits
What is the unit of potential difference ?

 Ohm
 Watt
 Ampere
 Volt

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Electric Circuits
To reduce hysteresis loss, we use

 CRGO steel.
 soft-iron.
 laminated sheets.
 copper bars.

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Electric Circuits
Which resistor will be physically larger in size?

 10 Ω, 50 W.
 1 M Ω, 1/2 W.
 100 Ω, 10 W.
 1 k Ω, 1 W.

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MORE MCQ ON Electric Circuits

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