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Electric Circuits

Electric Circuits
A capacitor that stores charge of 0.5 C at 10 V has a capacitance of _____________ farad.

 10.
 20.
 0.05.
 5.

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Electric Circuits
The resistance of 100 W, 200 V lamp is

 1600 Ω.
 800 Ω.
 400 Ω.
 200 Ω.

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Electric Circuits
Total power consumed in the circuit below is 10 W. Find X.

  2 A.
 3 A.
 None of these.
 1 A.

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Electric Circuits
The synchronous speed for the seventh space harmonic mmf wave of 8 pole, 50 Hz induction machine will be

 5250 rpm in reverse direction.
 5250 rpm in forward direction.
 107.14 rpm in reverse direction.
 107.14 rpm in forward direction.

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Electric Circuits
The Norton equivalent of a network is given as IN = 4A and RN = 2 Ohm. When this circuit is connected across a 2 Ohm load, the current through the load is

 1 A.
 0 A.
 2 A.
 4 A.

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Electric Circuits
A balanced three Phase Y-connected load has one phase voltage VB = 277∠45o V. The phase sequence is RYB. The line to line voltage VRY is

 339∠- 45o V.
 339∠45o V.
 480∠45o V.
 480∠ - 45o V.

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