Question

At a point in space, the uniform electric field points towards east. In the region
surrounding this point, the change of potential will be zero along
(1) East
(2) West
(3) East-West
(4) North-South​

Answer 1

Answer:

North and South

Answer 2

At a point in space, the uniform electric field points towards the east. In the region surrounding this point, the change in the potential will be zero along the North-South direction. (Option 4)

• If the particle moves along the equipotential lines from one point to another, the potential difference will be zero.

• Equipotential surfaces are vertical to the direction of the electric field lines.  As a result, if the electric field lines are towards the east direction, the equipotential surface will always be along the north-south direction.  

• The equipotential surface is a spherical shell, which never crosses each other.

• The equipotential lines are from high potential to low potential.