an electron (e) is to be released from rest on the central axis of a uniformly charged disk of radius R. The surface charge density on the disk is 4.00 mC/m2. What is the magnitude of the electron’s initial acceleration if it is released at a distance (a) R, (b) R/100, and (c) R/1000 from the center of the disk? (d) Why does the acceleration magnitude increase only slightly as the release point is moved closer to the disk?

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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.