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Q. A point charge q1=4nC is placed at the origin, and a second point charge q2= -3nC is placed on the x-axis at x= 20 cm. A third point charge q3=2.00 nC is to be placed on the x-axis between q1 and q2.

A.) What is the potential energy of third charge if it is placed at x= 10cm.

B) Where should the third charge be place to make its potential energy 0?

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