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**1. The problem statement, all variables and given/known data**

Find the total amount of energy of a charge (q) initially at rest placed at the left plate of a parallel plate capacitor. The left plate is at V = 0, the right plate at V = V

_{0}and the plates are a distance L apart.

**2. Relevant equations**

E

_{tot}= 1/2 mv

^{2}+ qφ(x).

φ(x) = Vx/L

**3. The attempt at a solution**

Since energy is conserved:

E = E

_{initial}= 1/2 m(v

_{initial})

^{2}+ qφ(0) = 0 + 0 = 0.

(I chose x = 0 to be the left plate)

So the total energy that the charge has is 0 everywhere? How does the charge even move at all if it has no energy to begin with?