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Describe schmattecally, the equipotential surfaces corresponding to(a) a constant electricfield in the Z-direction (b) a field that uniformly increases in magnitudebut remains in a constant, say z direction (c ) a single positive charge at the origin. (d) a uniformgrid consistingof long equally spacedparallel charged wires in a plane. |
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Answer» Solution :By defination, an equipotentialsurface is that at EVERY point of whichpotentialis the same. In the four cases given above : (a) EQUIPOTENTIAL SURFACES are planesparallel to X-Y plane. These are equidistant. (b) Eequipotential surfaces are planes parallel to X-Y plane. As the field increases uniformly, distance betweenthe planes (differeng by fixed potential) decreases. (c) Equipotentail surfaces are concetric spheres with origin at the center. (d) Equipotential surfaces have the surfaces have the shapewhich changesperiodically. At far off distancesfrom the grid, the shape of equipotenial surfaces BECOMES parallel to the grid itself. |
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