(20 points: 4 Points/question) An infinite line of charge, with linear charge de
ID: 1865756 • Letter: #
Question
(20 points: 4 Points/question) An infinite line of charge, with linear charge density 1, diagonally croses . cylindrical Gaussian surface (S), of radius R and length L (See Figure below). The net electric flux through (S) would be: (b) o -22 (c) ?= (S) has a conic shape of height H and a basis with radius R. This to a uniform electric field E. The electric flux entering the cone 2. A Gaussian surface surface is exposed should be: (a) EHR Euniform (b) ? EHR 2 (C)-EHR (d) EHR An electron is injected to move along a uniform electric field E- 200 N/C di along x-axis. It took 1 ns to go and come back to its initial position. Find its velocity? a) 3.3x10 m/s (b) 1.75x103 m/s c) 3.5x10 m/s d) 1.75x10 m/s leciroExplanation / Answer
2.
E field is parallel to the base the base of the cone.
?=E.A
?=E. Area of triangle with base 2R and height H
?=E.[1/2*2R*H]
?= EHR
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