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Electric Circuits

Electric Circuits
Air gap flux density is of the order of

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

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Electric Circuits
A two port network is defined by the relation The value of Z11 is

 -2/11.
 2.
 -3.
 2/11.

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Electric Circuits
The internal resistance of a dry cell is of the order of

  0.2 to 0.4 Ohm.
  1 to 1.5 Ohm.
  1 to 15 Ohm.
  2 to 5 Ohm.

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Electric Circuits
Resistance of which material does not change with change in temperature?

 Platinum.
 Metal alloys constantan and manganin.
 Brass.
 Tungsten.

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Electric Circuits
In RLC series circuit, at resonance condition the value of current is

 Maximum
 Minimum
 Zero
None of these

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Electric Circuits
A motor having a power factor of 0.8 absorbs in active power of 1200 W the reactive power drawn from the supply is _________ VA.

 900
 250
 130
 400

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