Quiz1 Soln

Quiz1 Soln - PHYS-102 QUIZ-I SOLUTION SPRING-08 Time...

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PHYS-102 QUIZ-I SOLUTION SPRING-08 Time allowed: 50 min. Notes: 1. For Prob.1 please circle the answer of your choice for each part. 2. For problems 2 and 3, your solutions must have adequate details to get full credit. ________________________________________________________________________ Name (Please PRINT) _________________________________ ________________________________________________________________________ F E = q E ; 1 2 2 kQ Q F r = ; 1/ 4 πε 0 = 9 2 2 9 10 k x Nm C ! = , . en E o q E dA ! " = = # r r ; ε 0 = 8.85 x10 -12 C 2 /Nm 2 ____________________________________________ ___________________________ 1a. The E -field at the center of a charged conducting shell of radius R carrying a charge q is measured to be zero. The magnitude of the E -field at a point R/2 away from the center would be: [b] 4 kq/R 2 N/C [c] 2 kq/R 2 N/C 1b . A thin, uniformly charged ring lies in the x-y plane with its center at the origin as shown. The net E -field at point P on the z-axis will point: [a] somewhere in the x-y plane. [b] along the positive z- axis . [c] E -field at P is zero because of the symmetry of the charge distribution. 1c. Two point charges are situated symmetrically about the origin. The E -field measured at the origin is zero. At point P, the E -field points in the positive x- direction. From
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This note was uploaded on 06/02/2008 for the course PHYS 102 taught by Professor N/a during the Spring '08 term at Drexel.

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Quiz1 Soln - PHYS-102 QUIZ-I SOLUTION SPRING-08 Time...

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