Question

Current is 40mA time is one minute then what will be the no of electrons?

Answer 1

I = 40 mA

t = 60s

charge, q = It = 40 × 60 = 2400 mC = 2.4 C

charge in 1 electron = 1.6 × 10^(-19) C

total electrons in 2.4 C = 2.4 ÷ (1.6 × 10^(-19)) = (2.4/1.6) × 10^(19) = 1.5 × 10^(19) electrons

Answer 2

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I = 40 mA

t = 60s

charge, q = It = 40 × 60 = 2400 mC = 2.4 C

charge in 1 electron = 1.6 × 10^(-19) C

total electrons in 2.4 C = 2.4 ÷ (1.6 × 10^(-19)) = (2.4/1.6) × 10^(19) = 1.5 × 10^(19) electrons.

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