A charged particle is located in the electric field between two horizontal metal plates that are connected to a source providing a constant potential difference, as shown. The electric field exerts a force $F$ on the particle. The distance between the plates is doubled. What will the new force on the particle be?
- A$\frac{F}{4}$
- B$\frac{F}{2}$
- C$F$
- D$2F$