a 100V battery is connected to two oppositely charge plates that are 10 cm apart. (i) what is the magnitude of the electric field? (ii)calculate the electric force exerted on a +200 mC point charge. (iii)what is the electric potential energy of the charge when it's 8cm and 2cm from the negatively charged plates?(iv) how much work was required to move the charge from 8cm to 2cm? (v) if the 10g point charge was at rest at point A, what is the final speed at point B?