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Electric Circuits

Electric Circuits
Which of the followings is the expression for energy stored in a capacitor?

 Cv.
 (1 / 2) Cv2.
 C / v.
 C dv / dt.

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Electric Circuits
Transients are presents in the circuit when the circuit is having

 Either L or C.
 L.
 C.
 R.

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Electric Circuits
A balanced delta connected load has an impedance of 9∠30o Ω per phase. What is the impedance per phase of its equivalent star?

 3∠30o Ω.
 30∠30o Ω.
 27∠30o Ω
None of these

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Electric Circuits
Fillers in a lead acid battery are provided

 to recover acid loss through vapours.
 to prevent flow of gases.
 all of above.
 to facilitate flow of gases.

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Electric Circuits
Mesh analysis is prefered when loops are------nodes

 less than
 any of the above
 greater than
 equals to

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Electric Circuits
Common impurity in battery electrolyte is

 sodium chloride.
 iron.
 lead sulfate.
 dust.

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