In: Physics
If E = 0 everywhere throughout a region of space, what do we know is true about the potential at points in that region?
The electric field in terms of potential drop can be expressed as,
E = -dV/dr
Here, Ex is the electric field, V is the electric potential and r is the position where electric field is defined.
The electric field is zero everywhere throughout a region of space. That is
Hence, dV/dr = 0
On integrating with respect to position,
V(r) = constant
Thus, it can be said that the potential drop will be a constant value irrespective of the position in that region.