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How many electrons flow when a current of 5 amp is passed through a cell for 200 sec?

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Question

How many electrons flow when a current of 5 amp is passed through a cell for 200 sec?

Options

  • 9.65 × 1021

  • 1.60 × 1021

  • 6.24 × 1021

  • 3.12 × 1021

MCQ
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Solution

6.24 × 1021

Explanation:

Q = I x t = 5 x 200 = 1000 C

The charge of one electron is 1.602 × 10-19C

No. of electrons passed `=(1000"C")/(1.602xx 10^-19"C")=6.24xx10^21`

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Electrolytic Cells
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