Question

Which describes the relation between an electric field and an equipotential surface?

Answer 1

The answer is the field vector is perpendicular to the surface.

The electric field's angle with the equipotential surface is always 90 degree. The electric field is always perpendicular to the equipotential surface.

What is electric field?

• The electric field is formally defined as a vector field associated with each location in space, the force per unit charge exerted on a positive test charge at rest at that place.
• The electric charge or time-varying magnetic fields create the electric field. At the atomic level, the electric field is responsible for the attractive forces that hold the atomic nucleus and electrons together.
• The normal vector to a surface, often known as the "normal," is a vector that is perpendicular to the surface at a particular position. When considering normals on closed surfaces, the inward-pointing normal (pointing towards the surface's interior) and outward-pointing normal are commonly differentiated.

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