P23_013

# P23_013 - 13. We choose the coordinate axes as shown on the...

This preview shows page 1. Sign up to view the full content.

13. We choose the coordinate axes as shown on the diagram below. At the center of the square, the electric Felds produced by the charges at the lower left and upper right corners are both along the x axis and each points away from the center and toward the charge that produces it. Since each charge is a distance d = 2 a/ 2= a/ 2 away from the center, the net Feld due to these two charges is E x = 1 4 πε 0 µ 2 q a 2 / 2 q a 2 / 2 = 1 4 πε 0 q a 2 / 2 = ³ 8 . 99 × 10 9 N · m 2 / C 2 ´ ( 1 . 0 × 10 8 C ) (0 . 050 m) 2 / 2 =7 . 19 × 10 4 N / C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . d d a a x y q q 2 q 2 q At the center of the square, the Feld produced by the charges at the upper left and lower right corners are both along the
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

Ask a homework question - tutors are online