What is the value of charge of a body that carries 20 excess electrons ?
Each electron has a negative charge of 1.610^-19 coulomb
So the 20 electrons will have a charge of = 20 -1.610^-19 = -32 10^-19 coulomb.
Answer:
Charge, \(q=3.2\times 10^{-18}\ Coulombs\)
Explanation:
We have to find the charge of a body that carries 20 extra electrons. We know that change on an electron is equal to :
\(e=1.6\times 10^{-19}\ Coulombs\)
Using conservation of charge i.e. q = n e
n is number of electrons. Here, n = 20........(1)
Charge of a body that carries 20 excess electrons can be calculated equation (1).
So, charge \(q=20\times 1.6\times 10^{-19}\ Coulombs\)
\(q=3.2\times 10^{-18}\ Coulombs\)
Hence, this is the required solution.