# Electric field

An electric field is a vector field that shows the direction that a positively charged particle will move when placed in the field. More precisely, if a particle has an electric charge ${\displaystyle q}$ and is in an electric field ${\displaystyle {\vec {E}}}$, the electric force the charge will feel is ${\displaystyle {\vec {F}}=q\cdot {\vec {E}}}$ .Electric fields are produced around objects that have electrical charge, or by a magnetic field that changes with time. Electric field lines are used to represent the influence of electric field. [1] The idea of an electric field was first made by Michael Faraday.[2]