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Electric Circuits

Electric Circuits
Coating generally recommended for hard surfacing is

None of these
 lead plating.
 copper plating.
 chromium plating.

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Electric Circuits
When power factor angle is constant, then shape of the current locus is

 semi circle.
 straight line.
 triangle.
 circle.

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Electric Circuits
Under resonance condition the phase angle between voltage phase and current phase is

 90°
 0°
 45°
 - 90°

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Electric Circuits
A 3Ω resistor having 2A current will dissipate the power of

 8 W.
 2 W.
 12 W.
 4 W.

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Electric Circuits
For finding the Z11 parameter at the input port of a two port network

 input port is open circuited.
 input port is short circuited.
 output port is open circuited.
 output port is short circuited.

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Electric Circuits
A wire of resistance R has it length and cross - section both doubled. Its resistance will become

 2R.
 4R.
 0.5R.
 R.

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MORE MCQ ON Electric Circuits

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