A. A 1 B 2 U. 3 4 E The figure above shows four very thin parallel planes of charge with equal separation between them. The charge density on plate 1 is 1 0. What is the Electric Field at point B? (in units of σ/ε0) -3.5 Correct response: 4.5+ 5.0% 0/€0 The charge density on plate 2 is 1 0. The charge density on plate 3 is -5 0. The charge density on plate 4 is -4 0. Your answers for the electric field must include the correct sign. We choose positive electric field along the positive x-direction.

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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.