Question

The magnitude of the charge on the electron is $ 4.8 \times 10^{-10}\, esu $ . What is the magnitude of the charge on the proton on the nucleus of a helium atom ?

• A. $ 4.8 \times 10^{-10}\, esu $
• B. $ 9.6 \times 10^{-10}\, esu $
• C. $ 6.4 \times 10^{-10}\, esu $
• D. $ 14.4 \times 10^{-10}\, esu $

Answer 1

Answer: (A)

Charge on the proton is same as on the electron.
i.e., $ 4.8 \times 10^{-10}\,$esu
or $ 1.6 \times 10^{-19}\,C$