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Electric Circuits

Electric Circuits
If the measured value of a capacitor is 205.3µF and true value is 201.4µF the percentage relative error is

 1.94%
 25.64%
 1.89%
 39.00%

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Electric Circuits
A ceramic and a mica capacitor have the same physical dimension. Which has the higher value of capacitance?

 Both have identical value of capacitor.
  It is impossible to conclude on the basis of information supplied.
 Ceramic capacitor.
 Mica capacitor.

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Electric Circuits
A balanced star connected load with impedance of 30j - 300 Ω is supplied from a 3 - phase, 4-wire, 173 V system, the voltages to neutral being 100j -900, 100j - 300 and 100j -1500 V. The current in neutral wire is

  5 A.
  50 A.
  zero.
  8.85 A.

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Electric Circuits
In series RLC circuit what is the power factor just bellow the resonance frequency?

 Lagging
 Zero
 Leading
 Unity

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Electric Circuits
Electric flux is proportional to

 rate of change of potential difference.
 resistivity of medium.
 rate of change of current.
 potential difference between electrodes.

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Electric Circuits
When 125 V is applied across a 250 V, 100 W filament incandescent bulbs, the power consumption is

 12.5 W.
 100 W.
 25 W.
 50 W.

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