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Electric Circuits

Electric Circuits
Kirchhoff's second law is based on law of conservation of

 momentum.
 energy.
 mass.
 charge.

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Electric Circuits
A two port network is defined by the relation The value of Z12 is

 3.
 2/31.
 -3.
 3/41.

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Electric Circuits
Purpose of using capacitor is / are

 to do phase split in AC 1 phase motor.
 increase p.f of inductive load circuit.
 effect DC filter in electronic circuit.
 all of these.

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Electric Circuits
Which of the following are the passive elements?

 None of these.
 Both
 Resistor
 Bulb

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Electric Circuits
Super position theorem is not applicable for

 voltage calculations.
 power calculations.
 current calculations.
None of these

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Electric Circuits
The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be

 R Ω
 4R Ω
 2R Ω
 8R Ω

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