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Electric Circuits

Electric Circuits
Internal resistance of ideal voltage source is

 infinite
 zero
 100 ohms
 finite

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Electric Circuits
In a 3 - φ delta connection, two-wattmeter method is used to measure the power; if the two watt meters read 28.13 kW and 13.31 kW, the power factor of connection will be

 0.9.
 0.4.
 0.6.
 0.85.

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Electric Circuits
Which of the following Y-parameters is dimensionless?

 Y22.
 Y11.
 none of these.
 Y12.

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Electric Circuits
Condition of symmetry in ABCD parameter representation is

 AD - BC = 1.
 C = D.
 A = D.
 B = D.

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Electric Circuits
Which law(s) find application in electrolysis?

 Faradays law.
 Coulombs law.
 Gausss law.
 Ohms law.

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Electric Circuits
If the dielectric of a capacitor is replaced by conducting material

 the capacitor can store infinite charge.
 the capacitor will get heated up due to eddy currents.
 the capacitance value of the plate will decrease.
 the plate will get short circuited.

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