In finding the electric field using gauss law the formula 
is applicable. In the formula ε 0 is permittivity of free space, A is the area of Gaussian surface and q enc is charge enclosed by the Gaussian surface. This equation can be used in which of the following situation?
A
Only when the Gaussian surface is an equipotential surface.
B
Only when 
= constant on the surface.
= constant on the surface.
C
Only when the Gaussian surface is an equipotential surface and 
is constant of the surface.
is constant of the surface.
D
For any choice of Gaussian surface.
Text Solution
Verified by ExpertsThe correct answer is:
C
Magnitude of electric field is constant & the surface is equipotential
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Suppose the charge of a proton and an electron differ slightly One of them is -e the other is . I…
The diagrams below show regions of equipotential
A positive charge is moved from A to B in each di…
An electric dipole is placed at an angle of 30 with an electric field intensity It experiences a …
Two identical charged spheres suspended from a common point by two massless strings of lengths l, a…
If potential (in volts) in a region is expressed as , the electric field at point (1, 1, 0) is
A parallel plate air capacitor of capacitance C is connected to a cell of emf V and then disconnect…