Question

calculate the charge on a body if one million electron are removed from it​

Answer 1

Charge on body Q = n(number of electrons removed or transferred) × e(charge on electron)
So Q = n×e
n= 10^6(one million) and e=1.6×10^19
So Q = 1.6×10^ - 13

Answer 2

Answer: First we should know the no. of electrons present in the body but here we don,t know the total no. of electrons so we will let the total no. of electron present in the body be x

charge on one electron = 1.6×10 raised to the power -19

Total charge Q = n×e-

where Q = total charge

n = no of electrons

e- = charge on one electron

so Q = x × 1.6×10 raised to the power -19

so total charge = x × 1.6×10 raised to the power -19

charge of 1000000 electrons = 1.6×10 raised to the power -19 × 1000000

                                                   =1.6×10 raised to the power -25

the charge on the body = (1.6×10 raised to the power -25) - (  x × 1.6×10 raised to the power -19)

Hope this will help you