Homework Help: How is an electric field determined?

1. Feb 16, 2009

me_and_you

I know that an electric field is a region that surrounds a charged particle and exerts a force on the particle, but I don't know how to determine an electric field.

2. Feb 16, 2009

dontdisturbmycircles

I am assuming you need to find the equation for the electric field?

Remember that $$E=\frac{F}{q}$$ where F is the force felt by an electrically charged object with charge q.

3. Feb 16, 2009

Redbelly98

Staff Emeritus
It depends on the problem being asked. Your textbook should have the equation for the electric field due to a point charge. Perhaps it also has equations for the electric fields of a line of charge as well as a charged plate or plane.

And sometimes, the electric field is simply a given in the problem statement.