An electron is accelerated in the uniform field E = 3.43 × 10^4 N/C between two thin parallel charged plates. The separation of the plates is 2.50 cm. The electron is accelerated from rest near the negative plate and passes through a tiny hole in the positive plate, see figure below. a) What is the potential difference between the two plates? b) Starting from the statement of conservation of energy, find the kinetic energy of the electron as it passes by the hole? c) With what speed does it leave the hole? d) Calculate the ratio of the electric force compared to the gravitational force

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.