What is the relationship between electric flux and electric field? Electric flux is said to be electric field passing through a particular surface but the relation does not make sense.
The electric field (`E` ) is defined as the electric force per unit charge. The electric flux (`Phi_E` )is defined as the electric field times the normal area vector.
In Gausses law this quantity is proportional to the amount of charge enclosed by a surface.
This is a very useful tool to figure out the electric field of an object when you know the charge, for instance if we have a spherical uniform charge distribution of radius `R` , then whats the electric field at `rgtR` ?
`E*A=Q_(enc)/epsilon_0` Since E and A are parallel everywhere in space.
`E(4 pi r^2)=Q_(enc)/epsilon_0`
`E=Q/(4pi epsilon_0 r^2)`
The same as for a point charge at r=0.