Question 3
Calculate the number of electrons constituting one coulomb of charge.

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Solution

One electron possesses a charge of $1.6 \times 10^{- 19} C$
i.e., $1.6 \times 10^{- 19} C$ of charge is contained in 1 electron.
$∴$ 1 C of charge is contained in $\frac{1}{1.6 \times 10^{- 19}}$ electrons
$= 6.25 \times 10^{18} = 6 \times 10^{18}$
Therefore, $6 \times 10^{18}$ electrons constitute one coulomb of charge.

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Q. The number of electrons constituting 10C of charge is?

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Question 3 Calculate the number of electrons constituting one coulomb of charge.

One electron possesses a charge of 1.6×10−19C i.e., 1.6×10−19C of charge is contained in 1 electron. ∴ 1 C of charge is contained in 11.6×10−19 electrons =6.25×1018=6×1018 Therefore, 6×1018 electrons constitute one coulomb of charge.

Question 3
Calculate the number of electrons constituting one coulomb of charge.