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प्रश्न
How many electrons will flow when a current of 5 amperes is passed through a solution for 200 seconds?
संख्यात्मक
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उत्तर
Given: Current (I) = 5 A
Time (t) = 200 s
We know that,
Q = I × t
= 5 × 200
= 1000 C
From Faraday’s laws,
n = `Q/e`
= `1000/(1.602 xx 10^-19)`
= 6.24 × 1021 electrons
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