{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

group 2

# group 2 - University of Minnesota School of Physics and...

This preview shows pages 1–3. Sign up to view the full content.

University of Minnesota Name: School of Physics and Astronomy ID No.: Physics 1302, Spring 2008, Section 300 TA: Hour Exam 2-Problem 1 A non-conducting sphere with a radius of 0.2 m has a uniformly distributed charge of +10 pC. Assume that a small hole is bored along the diameter of this sphere and a negative charge of -10 pC is free to move through that hole. Assume that the electric potential is zero at a distance of infinity. (a) What is the electric field (magnitude and direction) in the hole at a radius r ≤ 0.2 m from the center of the non-conducting sphere? (10 points) (b) What is the electric potential in the hole at a radius r ≤ 0.2 m from the center of the non- conducting sphere? (5 points) (c) What is the force (magnitude and direction) on the -10 pC charge in the hole at a radius r ≤ 0.2 m from the center of the non-conducting sphere? (5 points) (d) Assume that the -10 pC charge has a mass of 0.20 mg. What is the effective spring constant and period of oscillation of this charge?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
University of Minnesota Name:
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}