Question

Find the charge of a body constituting 10^(18) electrons. (With full process)

Answer 1

Explanation:

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Answer 2

We know that the charge on an electron is negative, and it is -1.6⨯10-19 coulomb.

We need to calculate the number of electrons constituting one coulomb of charge.

e = 1.6 × 10-19 C

Total charge required for 1Coulomb.

∴ q = 1C……….(1)

The formula to calculate the charge is

q = ne

where

q = charge

e = number of electrons

n = q/e……….(2)

Substituting equation (1) in equation (2), we get

n = 1/(1.6 × 10-19)

n = 6.25 × 1018 electrons ≅ 6 × 1018 electrons

So 1 Columb of charge contains 6 × 1018 electrons.