Question

If ${10}^{20}$ electrons are removed from a conductor. The nature and magnitude of the charge developed on it is :

• A. $+16C$
• B. $-16C$
• C. $+10C$
• D. $-10C$

Answer 1

Answer: (A)

$+16C$

When $e^{-}$ are removed the conductor gains positive charge.
charge of each $e^{-}=-1\cdot 6\times {10}^{-19}C$
$\therefore totalcharge=1\cdot 6\times {10}^{-19}\times {10}^{20}C$
$=16C$