You have a neutral balloon.

What is its charge after 12000 electrons
have been removed from it? The elemental
charge is 1.6 × 10−19 C.
Answer in units of µC.

1 answer

- (1.2*10^4 )(1.6*10^-19)
= 1.9 *10^-15 C
= 1.9 * 10^-9 µC