Posted by **brandon** on Wednesday, October 17, 2012 at 4:09pm.

There are 7 charges, each with q = -5 nC distributed on a circle with radius R=3cm. The center of the circle is at the origin. The charges are at angles 0o, 45o, 90o, 135o, 180o, -90o, and -45o. (Note: A charge at -135o is missing.) a) What is the net electric field at the origin? b) Calculate the electric potential at the origin with respect to infinity.

## Answer this Question

## Related Questions

- physics need help please - There are 7 charges, each with q = -5 nC distributed ...
- physics - A circle with a radius of R is inscribed in a square. On the corner of...
- physics - Three point charges lie along a circle of radius r at angles of 30°, ...
- Physics - Three point charges, -6.35 10-9 C, -8.20 10-9 C, and +7.75 10-9 C, are...
- physics - Three identical charges (q =4.3 µC)lie along a circle of radius 1.9 m ...
- mete - Three point charges lie along a circle of radius r at angles of 30°, 150...
- NEED MAJOR HELP! *QUADRATIC EQUATIONS* - Write the equation for the circle with ...
- Math - Circle O is centered at the origin and has a radius of 5. Circle O' is ...
- Physics please clarify - A charge of -3.00 µC is fixed at the center of a ...
- college physics - Three identical charges (q = +5.0mC) are along a circle with ...