Chapter 21/22 - Uniform Electric Fields + Coulomb’s Law

electric charge

a property of an object that gives rise to a force on the body when the body is in an electric field

electric field

a force field or region in which an electric charged particle or object experiences a force

field of force

a region of space where an object feels a force; the force may be gravitational, electric, magnetic, and so on

field lines

lines drawn to represent the strength and direction of a field of force

electric field strength

the force per unit charge exerted on a stationary positive charge at that point

Coulomb’s law

states that any two point charges exert an electrical force on each other that is proportional to the product of their charges and inversely proportional to the square of the distance between them

permittivity of free space

an electrical constant usually denoted by epsilon nought that has the value 8.85×10^-12 F/m

electric potential

the electric potential at a point is equal to the work done per unit charge in bringing unit positive charge from infinity to that point