Define electric flux. Write its s. I. Unit. A charge q is enclosed by a spherical of radius r. If the radius is to half, how would the electric flux through the surface change?
Answers
Definition- The number of electric field lines passing through unit area .
formula- E*A; product of electric field and Area
SI unit- Nm^2/C
By Guass law- electric flux through a closed surface enclosing a charge 'q' is 'q/epsilon)'
Clearly the flux only depend on the charge enclosed in the surface not on the radius so flux will remain same though the radius is halved.
Answer:
Electric Flux: The total number of electric lines of force diverging normally from a surface is called the electric flux through that surface.
S.I. unit of electric flux is volt metre.
Electric flux through surface element = EΔScosθ, where vector E is electric field strength. Electric flux through entire closed surface is As electric flux through the surface = 1/ε0 x q On decreasing the radius of the spherical surface to half there will be no effect on the electric flux.