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The potential of the plate A of a parallel plate capacitor is zero and the its other plate B is maintained at a potential +V. How does the potential vary from point to point between these plates? Neglect the end effect. |
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Answer» Solution :Let the POTENTIAL of a point at a distance x from the plate A be V' and intensity of the ELECTRIC field be E, then `E= (V')/(x)" or, "V' = Ex` The intensity of the electric field (E ) in the space between the two plates is a cosntant. `:. ""V' prop x` i.e., the potential V' increases UNIFORMLY with x. So, the graph of VARIATION of potentital with distance from A to B is a straight line passing through the origin. 
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