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Electric Circuits

Electric Circuits
Condition of reciprocity in Y-parameter representation is

 Y12 = Y22.
 Y11 = Y12.
 Y11 = Y22.
 Y12 = Y21.

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Electric Circuits
The linear circuit element is

 capacitor.
 inductor.
 all of above.
 resistor.

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Electric Circuits
If a capacitors of capacitance 100 μF is connected across a voltage source of 10 V, then what will be the energy stored in that capacitor?

 5 × 10 - 2 Joule.
 5 × 10 - 3 Joule.
 10 × 10 - 3 Joule.
 10 × 10 6 Joule.

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Electric Circuits
Lowest current density is generally recommended for plating of

 bronze.
 chromium.
 cadmium.
 silver.

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Electric Circuits
An AC voltage of 200 V at 50 Hz is applied to a coil which draws 5 A and dissipates 1000 W. The resistance and impedance of the coil respectively are

 40 Ω and 200 Ω.
 25 Ω and 5 Ω.
 50 Ω and 200 Ω.
 40 Ω and 40 Ω.

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Electric Circuits
VRN, VYN and VBN are three phase voltage of a balanced three phase system. If VRN = 200∠30o V and VBN = 200∠- 90o V, then phase sequence of the system is

 BRY.
 RYB.
 YRB.
 RBY.

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