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Electric Circuits

Electric Circuits
Which property is used to oppose the flow of current ?

 Capacitance
 Inductance
 Poteintial difference
 Resistance

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Electric Circuits
Three identical inductors are connected in delta with a 220 V, 50 Hz, 3 - φ, supply. If the phase current is 24 A, then what is the value of each of the inductance?

 0.049 H.
 0.058 H.
 None of these.
 0.029.

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Electric Circuits
Cascade connection of two port networks is analyzed through

 Z parameters.
 Y parameters.
 ABCD parameters.
 h parameters.

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Electric Circuits
A 3 wire, 3 - φ supply feeds a load consisting of three equal resistors. By how much is the load reduced if one of the resistors be removed when the load is in star?

 66.66 % of the original load.
 25 % of the original load.
 33.33 % of the original load.
 50 % of the original load.

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Electric Circuits
Which quantity consists of a unit 1KWh ?

 Time
 Power
 Charge
 Energy

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Electric Circuits
Fillers in a lead acid battery are provided

 to recover acid loss through vapours.
 to facilitate flow of gases.
 all of above.
 to prevent flow of gases.

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