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Electric Circuits

Electric Circuits
A two port network is defined by the relation The value of Z11 is

 -2/11.
 2/11.
 2.
 -3.

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Electric Circuits
Which of the following substance when added to electrolyte promotes smooth deposition?

 Albumen.
 Gelatine.
 Any of above.
 Glucose.

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Electric Circuits
The active and reactive power in an AC circuit are 10W and 20VAR respectively. What is the power factor?

 0.577.
 1.
 0.866.
 0.5.

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Electric Circuits
The strength of current in 1 H inductor changes at rate of 1 A / sec. Find the voltage across it?

 0.5 V.
 2 V.
 1 V.
 None of these.

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Electric Circuits
The maximum power that can be transferred to the load resistor R from the voltage source in the figure is

 9/8 W.
 6/8W.
 1 W.
 7.5 W.

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Electric Circuits
A positive and a negative charged conductor are initially 50 mm apart. When they are moved close together so that they are now only 10 mm apart, the force between them will be

 25 times larger than before.
 5 times smaller than before.
 5 times greater than before.
 10 times greater than before.

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