Why should the force on a point charge always be toward a neutral conductor? I know this is a simple concept, but I'm having trouble grasping it.
Any ideas?
Thanks!
Homework Statement
A square insulating sheet whose sides have length L is held horizontally. The sheet has a charge of Q spread uniformly over its area.
a) Estimate the electric field at a point located a distance r_2 above the center of the sheet. Use the appropriate approximations based on...
Homework Statement
A point charge, q, is at the center of an insulating hollow sphere with inside radius, a, and outside radius, b. The spherical shell has charge per unit volume, rho. You may assume that q and rho are positive.
Using Gauss' law, find the magnitude of the electric field...
Oh okay, I realized that I was just plugging in the wrong numbers, but now I have the right answers. Thank you!
Although, I'm still confused on part D. I'm not sure what equation to use. Any ideas?
An experiment is performed in deep space with two uniform spheres, one with mass 30.0 kg and the other with mass 109.0 kg. They have equal radii, r = 0.20 m. The spheres are released from rest with their centers a distance 42.0 m apart. They accelerate toward each other because of their mutual...