Question

What is the value of specific charge of an electron?

Answer 1

Hint: To make any quantity specific it is needed to divide the quantity by mass of the past charge of an electron first determined by the J.J Thomson.

Complete step-by-step answer:
There are two types of electric charge as positive and negative. Commonly positive charges are carried by the protons and negative charges are carried by the electrons. Same type or like charges always repeat to each other and different types of charges attract each other.
SI unit of charge is Coulomb (C): charge of the electron is \[-1.602\times {{10}^{-19}}C\].
Specific charge of an election is defined First by J. J. Thomson. It is the ratio of charge of electron to mass of electron.
Unit of specific charge on Electron is Coulomb/Kg
\[\text{Specific charge on electron}=\dfrac{\text{Charge on electron}}{\text{Mass of electron}}\]
\[=\dfrac{1.6\times {{10}^{-19}}C}{9.1\times {{10}^{-31}}kg}\]
\[=1.76\times {{10}^{11}}c/kg\]
Therefore specific charge of an electron is \[1.76\times {{10}^{11}}\text{ c/kg}\]

Note: Specific charge of an electron is defined as the ratio of charge on electron to mass of electron
\[\text{Specific charge on electron}=\dfrac{\text{Charge on electron}}{\text{Mass of electron}}\]