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Describe schematically the equipotential surfaces corresponding to a. a constant electric field in the z-direction. b. a field that uniformly increases in magnitude but remains in a constant (say,z) direction. c. a single positive charge at the origin, and d. a uniform grid consisting of long equally spaced parallel charged wires in a plane. |
Answer» Solution :a. EQUALLY spaced x-y planes.  B. x-y planes getting closer and closer along the z-direction.  c. Concentric SPHERICAL surfaces gradually increasing in spacing.  d. A periodically varying shape near the GRID which gradually reaches the shape of the planes parallel to the grid at far distances. 
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