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Electric Circuits

Electric Circuits
Air gap flux density is of the order of

  0.65 - 0.9 T.
  0.35 - 0.5 T.
 0.85 - 0.9 T.
 0.75 - 0.8 T.

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Electric Circuits
A variable capacitance is one whose capacitance

 can be changed manually or by mechanical force.
 changes with temperature.
 changes with time.
 changes with voltage.

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Electric Circuits
In the above question find the angle between voltage and current?

 30.
 90.
 54.74.
 60.

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Electric Circuits
The current flowing between electrodes inside a lead acid battery is

 electron current.
 polarization current.
 ionization current.
 proton current.

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Electric Circuits
Which field is associated with the capacitor?

 Both of (A) and (B).
 Electric.
 Magnetic.
 None of above.

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Electric Circuits
Types of rotating machines

 both B and C.
 transformer.
 synchronous machine.
 IM.

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