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Electric Circuits

Electric Circuits
Which of the following defined the average value ?

 Voltage
 Heating effect
 Current
 Charge transfer

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Electric Circuits
Advantage of active filter is

  both of above.
  do not offer gain.
  derive high impedance load.
  easy to tune.

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Electric Circuits
The energy stored by a capacitor is given by

 1/2 QV.
 Q2 / 2C.
 1/2 CV2.
 all of them.

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Electric Circuits
A capacitor is charged by a constant 10 mA current sources which is turned on for 1 second. Assuming the capacitor is initially charge free; determine the charge delivered to and the power supplied by the source if the capacitor has a value of 1 mF.

 0.01C, 10MW.
 0.1C, 10MW.
 0.1C, 100MW.
 0.01C and 5W.

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Electric Circuits
In which braking back emf exceeds supply voltage?

  None of these.
  Dynamic.
  Plugging.
  Regenerative.

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Electric Circuits
Electro-chemical equivalent is usually expressed in

  mg per coulomb.
  mg per kVA.
  mg per volt.
  mg per kW.

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MORE MCQ ON Electric Circuits

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