Act.01.24

Act.01.24 - field at the origin. First, let us consider the...

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Physics 2102, January 24, 2010. Example: charge is conserved. Initially q 1 = q 2 , and q 3 = 0. What is F’/F ? Activity 1 , August 27, 2010 The figure shows a proton and an electron placed at different positions on the x -axis. Indicate each answer below with a vector showing the direction. (a) What is the direction of the electric field from the electron only , at the point marked R ? (b) What is the direction of the net electric field (from both particles ) at point R ? (c) What is the direction of the net electric field (from both particles ) at point S ?
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Activity 2 , August 27, 2010 The figure shows three particles with charges q 1 = +2Q, q 2 = -2Q, and q 3 = -4Q, each at a distance d from the origin. The point of this activity is to find the direction of the electric
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Unformatted text preview: field at the origin. First, let us consider the electric field from each charge in turn. Write down the magnitude of E 1 (electric field created by charge q 1 ), and draw vector E 1 in the figure. (Where should the vector start from? In which direction does it point?) Do the same for electric fields E 2 and E 3 . Now we want to start adding electric fields. Are there any symmetries that are going to help us? (answer is yes) Which two electric fields should we add together first? (no further calculations needed). Now you should be able to see another symmetry that will help you. Do you see that one of the x- and y-components of the total electric field will be zero. Which one?...
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This note was uploaded on 05/20/2011 for the course PHYS 2102 taught by Professor Gimmnaco during the Fall '08 term at LSU.

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Act.01.24 - field at the origin. First, let us consider the...

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