Question

Two neutral spheres are kept side by side, now 150 electrons are transferred from one to other, find the magnitude of charge on one sphere.

• A. $2.4nC$
• B. $2.4\times {10}^{-17}C$
• C. $2.4\times {10}^{-19}C$
• D. $4.8\times {10}^{-17}C$

Answer 1

The correct option is B $2.4\times {10}^{-17}C$

Charge on an electron, $e=1.6\times {10}^{-19}C$
If $n$ electrons are transferred from neutral body then
$q=ne=150\times 1.6\times {10}^{-19}$
$q=2.4\times {10}^{-17}C$