Question

On an isolated system we first put +3C of charge and after that we put +6C of charge and again we put -15C of charge. What will be the net amount of charge on the system?

• A. +24 C
• B. +6 C
• C. -24 C
• D. -6 C

Answer 1

The correct option is D -6 C

Using the additive property of the charges we have

$q_{net}=q_1+q_2+...+q_n$

So net charge $3+6+(-15)=-6$ C

So option d is correct.