Question

Charge on electron of mass $9.109\times {10}^{-31}$Kg is:

• A. $1.603\times {10}^{-19}$C
• B. $-1.603\times {10}^{-19}$C
• C. $9.109\times {10}^{-31}$C
• D. $-9.109\times {10}^{-31}$C

Answer 1

Answer: (B)

$-1.603\times {10}^{-19}$C

Since, electron contains negative charge, its charge can be given as: $-1.603\times {10}^{-19}C$

This value of charge of the electron is determined by the Millikan experiment.