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practice_problems_exam1

# practice_problems_exam1 - PHYS 272 Exam 1 Practice Problems...

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PHYS 272 Exam 1 – Practice Problems Problem 1 The magnitude of the electric field due to a small dipole is measured to be 100 N/C at a location on the axis perpendicular to the dipole and 2 cm from the center of the dipole. Approximately what is the magnitude of the electric field due to the dipole at a location 6 cm from the dipole along the same axis? 1. 100 N/C 2. 0.41 N/C 3. 37.0 N/C 4. 900 N/C 5. 11.1 N/C 6. 33.3 N/C 7. 3.7 N/C Problem 2 The magnitude of the electric field due to a disk of radius 3 m and a uniformly distributed positive charge is measured to be 150 N/C at a location in the air 6 mm from the center of the disk, along a line perpendicular to the disk. Approximately what is the magnitude of the electric field due to the disk at a location 9 mm from the center of the disk, on the same line? 1. 44 N/C 2. 67 N/C 3. 100 N/C 4. 150 N/C 5. 225 N/C 6. 338 N/C 7. 506 N/ C Problem 3 The magnitude of the total charge Q on the disk in problem 2 is 1.

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practice_problems_exam1 - PHYS 272 Exam 1 Practice Problems...

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