Assume a parallel plate capacitor in air where the plates of 20 x 20 cm2 are in a distance of 15 cm and show a potential difference of 25 V. a) Calculate the electric field between the two plates. b) You have a small particle charged with 8 electrons which is located 2.5 cm from the negatively charged plate. What work do you have to perform to move the particle to a location of 7.0 cm from the positively charged plate? (Hint: Neglect any gravitational effects)

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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.