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Electric Circuits

Electric Circuits
In the circuit given, I = 1 A for Is = 0. What is the value of I for Is = 2 A ?

 4 A.
 3 A.
  2 A.
 1 A.

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Electric Circuits
In the given figure, the Thevenins equivalent voltage and impedance as seen from the terminals P - Q is given by

 4 V and 5 Ω.
 2 V and 7.5 Ω.
 2 V and 5 Ω.
 4 V and 7.5 Ω.

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Electric Circuits
Cells are connected in parallel in order to increase

 life of the cells.
 efficiency.
 voltage rating.
 current capacity.

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Electric Circuits
The number of electrons in the outer most orbits of carbon atom is

 6.
 4.
 7.
 3.

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

 All of above.
 Voltage.
 Power factor.
 Current.

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Electric Circuits
What is meant by the rate of flow of an electric charge?

None of these
 Electric current.
 Electric potential.
 Electric resistance.

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