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Electric Circuits

Electric Circuits
Lowest current density is generally recommended for plating of

 silver.
 chromium.
 cadmium.
 bronze.

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Electric Circuits
Which quantity should be measured by the voltmeter ?

 Speed
 Voltage
 Power
 Current

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Electric Circuits
An electrical motor has rating of 10 MVA at 0.8 lag, represented as series RL circuit at a 50 MVA base. Find the impedance value?

 (2 + j4) pu
 (3 + j4) pu
 (4 + j2 ) pu
 (4 + j3) pu

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Electric Circuits
The energy required to charge a 10 μF capacitor to 100 V is

 10 × 10-9 J.
 0.01 J.
 5 × 10-9 J.
 0.05 J.

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

 0°
 45°
 90°
 - 90°

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Electric Circuits
Say A point has an absolute potential of 40 V and point B has an absolute potential of - 10 V, then what will be the value of VBA ?

  30 V.
  - 50 V.
 50 V.
  none of above.

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