Question

An object has a -8 C charge. The object breaks into two pieces. One piece has a charge of -2 C. What is the exact charge (in C) of the other piece? Do not include units with your answer.

Answer 1

As we know the property of charge that charge is always conserved

so we can say

$Q = q_1 + q_2$

here we know that total charge is

$Q = -8 C$

and we also know that

$q_1 = -2C$

from above equation we can say

$-8 = -2 + q_2$

$q_2 = -8 +2 = -6 C$

so the other charge will be -6 C