You have a neutral ballon What is its charge after 19000 ele

You have a neutral ballon. What is its charge after 19000 electrons have been removed from it? the elemental charge is 1.6x10^-19 C.

Solution

Charge is -1.6x10^-19 C.per electron, after removing 19000 electrons, the charge is reduced by -1.6*10^-19*19000

i.e, charge is positive 1.6*10^-19*19000 = 3.04*10^(-15) C

multiply by 10^6 to get answer : 3.04*10^(-9) muC