The value of e/m for an electron is

Options

A. `1.78 xx 10^8` c/g
B. `1.6724 xx 10^(-24) c//g`
C. `0.005486 c//g`
D. `1.00866 c//g`

Answer

A

Explanation

`e/m ` of `e^- =(1.6 xx 10^(-19))/(9.1 xx 10^(-28)g) = 1.78 xx 10^8 ` c/g