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Standard XII
Physics
Electric Potential at a Point in Space Due to a Point Charge Q
Question

Draw a plot showing the variation of (i) electric field (E) and (ii) electric potential (V) with distance r due to a point charge Q.

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Solution
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The electric field due to point charge Q is E=kQ/r2 and the potential is V=kQ/r
Thus, the graph E,V vs r will be as shown in figure.

545464_501410_ans.png

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