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Electric Circuits

Electric Circuits
The capacitive reactance of a capacitor of (1 / 2μF) F at 103 Hz is

 10 6 μF.
 10- 3 μF.
 10- 6 μF.
 10 3 μF.

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Electric Circuits
A constant current source supplies a electric current of 300 mA to a load of 1 KΩ. When the load changed to 100 Ω, the load current will be

 300 mA.
 3 A.
 100 mA.
 30 mA.

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Electric Circuits
The charge of an electron is

 - 1.675 × 10 - 27 Coulombs.
 - 1.672 × 10 - 27 Coulombs.
 - 1.602 × 10 - 19 Coulombs.
 - 9.109 × 10 - 31 Coulombs.

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Electric Circuits
A capacitor in a circuit became hot and ultimately exploded due to wrong connection, which type of capacitor it could be?

 Paper capacitor.
 Any of above.
 Electrolytic capacitor.
 Ceramic capacitor.

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Electric Circuits
A 10 Ohm resistor has power rating of 1W. Find the maximum current rating.

 0.01 A.
 0.1 A.
 1 A.
 0.316 A.

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Electric Circuits
A 3Ω resistor having 2A current will dissipate the power of

 12 W.
 4 W.
 8 W.
 2 W.

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MORE MCQ ON Electric Circuits

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