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Electric Circuits

Electric Circuits
Consider the following circuit : Switch is closed at t = 0 Find i(0 +)

 V/R.
 V / {R + (sL + 1 / Cs)}.
 (V*L) / (R*C)
 0.

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Electric Circuits
The ratio of intensity of magnetisation to the magnetising force is known as

 susceptibility.
 relative permeability.
 none of above.
 flux density.

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Electric Circuits
Electro-chemical equivalent is usually expressed in

  mg per kW.
  mg per volt.
  mg per kVA.
  mg per coulomb.

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Electric Circuits
During electroplating the amounts of different substances liberated by same quantity of electricity are proportional to their

  atomic numbers.
  chemical equivalents.
  valency.
  atomic weights.

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Electric Circuits
The capacitive reactance of a capacitor of (1 / 2μF) F at 103 Hz is

 10 6 μF.
 10- 6 μF.
 10 3 μF.
 10- 3 μF.

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Electric Circuits
The resistivity of semi-conductors at room temperatures is

 1.6 × 106 to 100 × 106 ohm - cm.
 0.01 to 50 ohm - cm.
 1000 to 1500 ohm - cm.
 109 to 1012 ohm - cm.

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