6.5 electric field Flashcards
define coulomb’s law
coulomb’s law states that the electric force F acting between any two point charges Q1 and Q2 is directly prooportional to the product of the charges and inversely proportional to the square of their separation r. the direction of the force is along the line joining the two point charges
define electric field
electric field is a region of space in which there is an electric force acting on a charged object placed within the field
define electric field strength
electric field strength is the electric force per unit positive charge exerted on a small test charge placed at that point
define electric potential
electric potential is defined as the work done per unit positive charge in bringing a small test charge from infinity to that point
define electric potential energy
electric potential energy is defined as the work done in bringing a small test charge from infinity to that point