Electric fields GapFill

An electric field is a region in which a charge experiences a force. Electric field lines show  the direction in which all charges will experience a forcelines where the force experienced by a charge is constantthe direction in which a positive charge will experience a forcethe direction in which a negative charge will experience a force. This force can be calculated using Coulomb's law:  F = 4πεQ₁Q₂/r²F = 1/(4πε) × Q₁Q₂/rF = 1/(4πε) × Q/r²F = 1/(4πε) × Q₁Q₂/r².
Electric field strength is defined as  the force experienced per unit chargethe charge on the source of the electric fieldthe potential energy at a given position in an electric fieldthe energy stored per unit charge. The electric field strength in a uniform field is given by  E = V/dE = √(V/d)E = V/d²E = d/V, and the electric field strength in a radial field is given by  E = 1/(4πε) × Q₁Q₂/r²E = 4πεQ/r²E = 1/(4πε) × Q/rE = 1/(4πε) × Q/r².
Electric potential is defined as  the total chargethe energy stored per unit chargethe charge per unit energy storedthe total energy at a given position in an electric field. In a radial field, electric potential is given by  V = Q/rV = 1/(4πε) × Q/rV = Q/r²V = 1/(4πε) × Q/r².
By considering the electric potential and electric field strength in a field, the equation  Fd = QΔV/r²Fd = QΔV/rFd = 1/(4πε) × QΔVFd = QΔV can be found, giving the work done by moving a charge between parallel plates.