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3- A wire carries a uniform linear charge density =+9nC is bent into a shape quarter of a circle as shown in the figure.

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3- A wire carries a uniform linear charge density =+9nC is bent into a shape quarter of a circle as shown in the figure. The work needed to move a point charge q=-5C from the origin to infinity is: (consider V (o) = 0). Ans: V= U= dq + R X PAMATA O

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