일반물리학 2 — Electric Potential: Problem 54

54 The electric field between two large, parallel, metal plates is approximately uniform, especially away from the edges where there can be some fringing. Suppose the plate separation is 8.00 cm. If the electric force on an electron placed in the uniform field has a magnitude of \( 7.90 \times 10^{-16} \text{ N} \), (a) what is the potential difference between the plates and (b) is the force directed toward the plate with the higher potential or the lower potential?