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Electric Circuits

Electric Circuits
In which braking back emf exceeds supply voltage?

  Regenerative.
  None of these.
  Dynamic.
  Plugging.

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Electric Circuits
What is called the frequency in AC operation?

 No. of (+) ve quadrature made per second.
 No. of cycles made per second.
 No. of wave made per second.
 No. of (-) ve quadrature made per second.

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Electric Circuits
The unit of resistivity is

 Ω.
 Ω - metre.
 Ω / m².
 Ω / metre.

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Electric Circuits
A current of 1 mA flows through a 1M ohm, 2 W carbon resistor. The power dissipated as heat in the resistor will be

 0.5 W.
 2 W.
None of these
 1 W.

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Electric Circuits
The greater the internal resistance of a cell

 the greater the emf.
 the lesser the terminal voltage.
 the lesser the emf.
 the greater the terminal voltage.

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Electric Circuits
Active filter consists of

 op-amp and capacitor.
 inductor.
 capacitor.
 op-amp.

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MORE MCQ ON Electric Circuits

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