Electrostatics

The Electrostatic Field <==> The Electrostatic Force

Electrostatics

The Electric Field

and The Electric Force

 Electrostatics

      The Electric Field

           Relationship to the Electric Force

\vec{E}

influence at some location in space

interaction between charges

\vec{F}
\ \vec{F} = q_0\ \vec{E}\
\ \vec{E} = \vec{F}/q_0\ \

Electric Field

Electric Force

Analogy to gravity

\vec{g}

influence at some location in space

interaction between masses

\vec{F}_g
\ \vec{F} = m\ \vec{g}\
\ \vec{g} = \vec{F}_g/m\ \

Gravitational Field

Gravitational Force

 Electrostatics

      The Electric Field

           Relationship to the Electric Force

\vec{E}

influence at some location in space

interaction between charges

\vec{F}
\ \vec{F} = q_0\ \vec{E}\
\ \vec{E} = \vec{F}/q_0\ \

Electric Field

Electric Force

 Electrostatics

      The Electric Field

           Relationship to the Electric Force

\ \vec{F} = q_0\ \vec{E}\
\vec{E}

influence at some location in space

interaction between charges

\vec{F}
\ \vec{F} = q_0\ \vec{E}\
\ \vec{E} = \vec{F}/q_0\ \

Electric Field

Electric Force

\text{a charge $q_0$ in a local field $\vec{E}$}
\text{experiences a force $\vec{F}=q_0\vec{E}$}
\vec{E}
\vec{E}
\vec{E}
\vec{F}
\text{the force on a positive charge}
\text{is in the same direction as the field}
\text{the force on a negative charge}
\text{is in the opposite direction to the field}
\vec{F}