Question

When ${10}^{20}$ electrons are removed from a neutral metal plate through some process, the charge on it becomes ______

• A. $-1.6C$
• B. $+16C$
• C. $+1.6C$
• D. ${10}^{-19}C$

Answer 1

The correct option is B $+16C$

$Q={10}^{20}\times 1.6\times {10}^{-19}\therefore Q=+16C$