A cylinder is placed in a uniform electric field
Asked by admin @ in Physics viewed by 377 People
A cylinder is placed in a uniform electric field e with its axis parallel to the field show that the total electric flux through the cylinder is zero
Answered by admin @
Electric flux over the curved surface is
given by,
ϕ=∫E.ds cos90°
ϕ=0
Moreover, the flux over the end faces of
the cylinder is zero.
The flux or the lines of forces entering
the cylinder at one end leaves the other
end is same.
ϕ
out
=
EπR
2
−
EπR
2
=0
where, E=electric field
R=radius of cylinder
ϕ
out
=outward flux
Hence, total flux electric flux is zero.
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