A single electron accelerates between the cathode and the anode that has a potential difference of 2000 V. The charge of an electron is 1.6 x 10^-19C and its mass is 9.1 x 10^-31 kg. 2. Compute for the work done on the electron passing through a potential difference of 2000 V. Give your answer in joules. 3. Kinetic energy of the electron the work done on the electron. Write the formula for kinetic  energy in terms of mass m and speed v. 4. Using your answers in #2 and #3, find the speed of the electron

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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.