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Electric Circuits

Electric Circuits
Condition of reciprocity in Y-parameter representation is

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

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Electric Circuits
Which battery is used in aeroplanes?

 Lead acid battery.
 Edission cell.
 Dry cell battery.
 None of them.

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Electric Circuits
From the given figure find the R3

 25 mili ohm
 25 mega ohm
 25 kilo ohm
 25 ohm

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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

 0.6.
 0.9.
 0.4.
 0.85.

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Electric Circuits
The instantaneous values of line current into a delta connected load in any two lines are + 2.5 amps and - 1.25 amps the current in the third line at the instant is ___________ A.

 10
 1
 2.5
 - 1.25

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Electric Circuits
Which quantity should be measured by the voltmeter ?

 Speed
 Power
 Current
 Voltage

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MORE MCQ ON Electric Circuits

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