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ELECTRIC CIRCUITS

Electric Circuits
If 1 A current flows in a circuit, the number of electrons flowing through this circuit is

 0.625 × 1019
 1.6 × 10 - 19
 0.625 × 10 - 19
 1.6 × 1019

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Electric Circuits
The resistivity of the conductor depends on

 type of material.
 area of the conductor.
 none of these.
 length of the conductor.

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Electric Circuits
The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be

 8R Ω
 2R Ω
 4R Ω
 R Ω

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Electric Circuits
How many coulombs of charge flow through a circuit carrying a current of 10 A in 1 minute?

 10
 1200
 600
 60

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Electric Circuits
A capacitor carries a charge of 0.1 C at 5 V. Its capacitance is

 0.02 F
 0.05 F
 0.5 F
 0.2 F

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