1. V E (a) Calculate is the change in PE when an electron moves through an electric field, E = 50 N/C, directed to the right, a distance of 6 m to the left. Potential Energy, APE: J (b) Is mechanical energy of the electron conserved during the motion? Yes No (c) If the electron starts from rest what is its speed, vf, after traveling 6 m? The mass of the electron is -31 me =9.1×10'kg. V = m/s

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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.