PROPERTIES OF ELECTRIC
Flux lines generally originate at
positive charges and terminate at
The strength of the electric field is
dependent on the number of flux
10. What is ELECTRIC
The number of field lines passing
through a surface.
ɸ = E.Acosθ
17. CALCULATING ELECTRIC FLUX
An electric field of 50.0 N/C makes
an angle of 30.0 with the surface
vector. It has a magnitude of 0.50m.
Find the electric flux that passes
through the surface
18. Let’s try!.....
Directions: Solve the following problems systematiclly.
1. Consider a uniform electric field of 300 N/C. What
is the flux of this field through a square of 10 cm
on a side whose plane is parallel to the plane?
2. The square surface measures 3.2 mm on each
side. It is immersed in a uniform electric field with
magnitude E= 1800 N/C. The field lines make an
angle of 35° with a normal to the surface.
Calculate the electric flux through the surface.
20. What does
“The electric flux passing through
any closed surface (known as
Gaussian surface) is equal to
total charge enclosed by the
surface to the permittivity of free
ɸ = q/ɛ