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Electric Circuits

Electric Circuits
In direct arc furnace which of following is of high value?

 Current.
 Power factor.
 All of above.
 Voltage.

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Electric Circuits
The terminals across the source are ___________ if a voltage source is to be neglected.

 short circuited.
 open circuited.
 replaced by a shunt resistance.
 replaced by a series resistance.

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

  chemical equivalents.
  atomic numbers.
  valency.
  atomic weights.

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Electric Circuits
Condition of symmetry in ABCD parameter representation is

 B = D.
 A = D.
 AD - BC = 1.
 C = D.

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Electric Circuits
Kirchhoff’s voltage law is used for

 loop analysis.
 finding equivalent resistance.
 representing a current source.
 nodal analysis.

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Electric Circuits
The charge of an electron is

 - 1.675 × 10 - 27 Coulombs.
 - 1.672 × 10 - 27 Coulombs.
 - 9.109 × 10 - 31 Coulombs.
 - 1.602 × 10 - 19 Coulombs.

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