PHYS 1051 Midterm: PHYS 1051 Winter 2010 Term Test 2 V2
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If necessary, continue onto the back of the page. Write your name and student number on each page. Do not erase or use whiteout to correct answers. Draw a line neatly through material to be replaced and continue with correction. Assume all information given is accurate to 3 significant figures. Four charges are positioned on the x-y plane as shown: is at cm, 0 x cm 0 y cm 2 y cm, cm, cm 2 y y cm 0. Give your answer in unit vector notation. (c) there is an equipotential line that passes through the origin. Draw it on the figure and briefly justify the line you have drawn. (d) what is the electric force on charge r. [10] 2. (a) a conducting spherical shell with an inner radius of and an outer radius cm 5. 1=a. The cavity at the centre of the cm 0. 2=b.