Charge of an electron is $1.6 \times 10^{-19}$ C. Total charge of $5 \times 10^{6}$ electrons is

Charge of an electron is $1.6 \times 10^{-19}$ C. Total charge of $5 \times 10^{6}$ electrons is
  1. $8 \times 10^{-13}$ C
  2. $8 \times 10^{-25}$ C
  3. $8 \times 10^{13}$ C
  4. $1.6 \times 10^{-13}$ C

Solution

$1.6 \times 10^{-19} \times 5 \times 10^{6} = 8 \times 10^{-13}$ C.

Asked in: NSO

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