When charged particles are close enough to exert force on each other their electric fields interact. Describe a force field and calculate the strength of an electric field due to a point charge. Cyberphysics Electric Field A radial field around a positive charge A. . Therefore lets say that we have a point charge with charge q. P 0 3 d. An electric field is a region of space around an electrically charged particle or object in which an electric charge would feel force. An electric charge is a property of matter that causes two objects to attract or repel depending on their charges positive or negative. The moving electric charge causes an increase in the electric field in front of it and a decrease in the electric field in back of it and these changes create a magnetic field. This charge accumulation results from electrostatic induction whereby a charged object external to a conductor induces the opposite charge to move to