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Choose correct alternative. A current ...

Choose correct alternative.
A current of 1 mA is flowing in a copper wire. The number of electrons crossing any point in the conductor per second will be

A

`6.25 xx 10^8`

B

`6.25 xx 10^15`

C

`6.25 xx 10^19`

D

`6.25 xx 10^31`

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