Question

A body has +5C charge .if we add 10 to the power 20 elections into the body . Then the net charge on the body will be?

Answer 1

Answer:

we know the charge of an electron is 1.6*10 ^-19  so for 10^20 electrons total cahrge is -16..thefore total charge is 5-16=-11C

Explanation:

Answer 2

Answer:

The net charge on the body after addition of $10^{20}$ electrons will be 11C.

Explanation:

Given, charge on the body, $Q=5C$

   and number of electrons added is $10^{20}$

Charge of electron, $e=-1.6\times 10^{-19} C$

then charge of $10^{20}$ is $q=ne$

                                       $=-1.6\times 10^{-19}\times10^{20} =-16C$

Final charge on the body is

                               $Q_{net} =5+(-16)=11C$