Physics 6B - Midterm #2

Physics 6B - Midterm #2 - / ,aysics 613 Katsushi Arisaka...

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,aysics 613 Katsushi Arisaka / November 14,2005 Second Midterm (Type B) I Last Name: First Name: Student ID No. @31%" \'z;<h Enrolled Lecture: 2 - loam ' 3 1 lam I ,*-/ --- . -,-= Important Remarks: Sorry to tell you but during the exam, close books, close notes, no calculator is allowed. Please use any open space on the exam for your solution. Please write down how derived concisely (which helps to get a partial credit even if the final answer is wrong.) a Feel free use given formulae on next page without r~roof. stav seated until the time over (10:SOarn or 1 1:50am), which helps rest of the students to concentrate the exam. * Total is 100 points. Your Points:
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I I i 1 Two paint charges are located as shown below. One has positive charge +Q and at (x, y) = (0, +a). The other has positive charge +2Q and at -a). a) What is the force acting an the Q by charge 20 ? (Specify magnitude and direction clearly.) b) FindtheElectricFieId atpoint P=(0, 0). (Specify themagnitude anddirection.)
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c) Sketch the electric field lines (on the figure below).
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This note was uploaded on 04/29/2008 for the course PHYS 6B taught by Professor Wu during the Winter '08 term at UCLA.

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Physics 6B - Midterm #2 - / ,aysics 613 Katsushi Arisaka...

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