Question

Calculate the total number of charge on a body if 12.4 * 10^25 electrons are transferred to it . also find the charge of the body from where electrons are transferred . PLZ SOLVE IT ON A PIECE OF PAPER AND THE ADD THE ANSWER

Answer 1

$\huge{\bold{\underline{\underline{SOLUTION}}}}$

Given:

no. of electrons = 12.4 × 10^25

The charge that will be transferred to the body is equal to the charge that is contained in the number of electrons.

So, we know

1 C = 6.24 × 10^18

So, Charge in 12.4 × 10^25 electrons:

$</p><p></p><p>\rightarrow \quad \frac{ \cancel{12.4} \times 10^{25} }{ \cancel{6.24} \times 10^{18} } \\ \\</p><p></p><p>\rightarrow \quad 1.98 \times 10^{25 - 18} \\ \\</p><p></p><p>\rightarrow \quad 1.98 \times 7 \\ \\</p><p></p><p>\rightarrow \quad 19800000 </p><p></p><p>$

Hence, The charge transferred is 19.8 MegaCoulomb ( MC )