An electron with a charge of -1.6 x10-19 C provided by the electron gun inside the TV, enters a region of uniform electric field as shown in the diagram below. The upper metal plate on CRT system has positive charge of 5.2 x10-7 C and the lower plate has an equal-magnitude negative charge. The plates are 0.05 cm apart and both has an area of 4 x10-3 m2. What is the magnitude of the electric field? A. 1.13 x 10^-4 N/C B. 1. 30 x 10^-4 N/C C. 1.40 x 10^6 N/C D. 1.47 x 10^7 N/C 2. What is the average electric potential V between the plates?

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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.