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midterm-W08 - Phys 205(Electromagnatism Midterm 1h 15 min...

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Unformatted text preview: Phys 205 (Electromagnatism), Midterm (February 14, 2008), 1h 15 min. First and last names: ------------------------------------------------------------------------------ (10 pts) (Please, write on the booklet provided). Budget your time In all the following, you need to show all your steps starting from basic principles. Pay attention to the vector notation; otherwise 5% will be deducted from your total mark. Question 2 ( 20 pts) A solid sphere of radius 40.0 cm has a total positive charge of 26.0 μ C uniformly distributed throughout its volume. Calculate the magnitude of the electric field (a) 0 cm, (b) 10.0 cm, (c) 40.0 cm, and (d) 60.0 cm from the center of the sphere. Question 3 (12 pts) The potential in a region between x = 0 and x = 6.00 m is V = a + bx , where a = 10.0 V and b = –7.00 V/m. Determine (a) the potential at x = 0, 3.00 m, and 6.00 m, and (b) the magnitude and direction of the electric field at x = 0, 3.00 m, and 6.00 m....
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midterm-W08 - Phys 205(Electromagnatism Midterm 1h 15 min...

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