How many excess electrons are on a ball with a charge of - 1.4944 10-16 C?

There are 934 excess electrons on the ball with charge - 1.4944*10^ (-16).

Step-by-Step Explanation:

A ball will usually be neutral and have no charge on it.

If it is negatively charged, it means there are excess electrons on it.

If we know the charge on the ball, we can count the excess no. of electrons.

We know that the charge on the ball = c = - 1.4944*10^-16

Charge of one electron = e = 1.6*10^-19

Charge of n electrons on the ball = ne = c

⇒ n = c/e

n = (-1.4944*10^-16) / (1.6*10^-19)

n = 934 electrons