### Electric Force - Point Charge

A small object has charge $Q$. Charge q is removed from it and placed on a second small object. The two objects are place 1m apart. For the force that each object exerts on the other to be a maximum. $q$ should be:
1. $2Q$
2. $Q$
3. $\frac{Q}{2}$
4. $\frac{Q}{4}$
5. $0$