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Exam 1 Spring 2009

# Exam 1 Spring 2009 - Physics 2114 Spring 2009 Midterm Exam...

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Physics 2114 Spring 2009 Midterm Exam 1 Dr. Bandy Page 1 NOTE: This a typical exam format, as per student request, for Fall 2011 students’ perusal. This 2009 exam 1 only covered Chapters 20 thro 22 and reflects the course material taught during Spring 2009. Your exam 1 will reflect the material assigned and covered for Phys2114, Fall semester 2011. Signature ________________________ Print Last Name: __________________ Sec. #____ Problem 1 (See Fig. 1 ) (34 points) Three point charges q 1 = 1.0 nC , q 2 = +4.0 nC , and q 3 = 2.0 nC are assembled as shown in Fig. 1 . a. Sketch and label on Fig. 1 the electric field(s) acting at position a . b. Sketch on Fig. 1 the force 3 2 on F . c. Calculate the force 3 2 on F . d. Calculate the flux 1 Φ thro a Gaussian sphere centered at ( ) ( ) cm 1.0 and cm 0.5 , = y x with radius 0.2 cm . e. Calculate the flux 2 Φ thro a Gaussian sphere centered at ( ) ( ) cm 1.0 and cm 0.5 , = y x with radius 2.0 cm. (You may sketch these Gaussian spheres on Fig.1 without penalty – not required.) Figure 1 q 1 q 2 q 3 1.0 cm 2.0 cm a .

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Exam 1 Spring 2009 - Physics 2114 Spring 2009 Midterm Exam...

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