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प्रश्न
Find the number of electrons that would flow per second through the cross-section of a wire when 1 A current flows in it.
टीपा लिहा
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उत्तर
I = Q/t = n e/t
So, n = I.t / e = 1. 1 / 1.6 x 10-19 = 6.25 x 1018
So, 6.25 x 1018 will be the number of electrons.
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