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A positive charge q is fixed at the point x=0,y=0 and a negative charge -2q is fixed...

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Physics

A positive charge q is fixed at the pointx=0,y=0 and a negative charge -2q isfixed at the point x=a,y=0.

Part A:

Derive an expression for the potential V at points onthe y-axis as a function of the coordinate y.Take V to be zero at an infinite distance from thecharges.

Part B:

At which positions on the y-axis is V = 0?

Part C:

What does the answer to part A become wheny>>a?

Part D:

Explain why this result is obtained.

Answer & Explanation Solved by verified expert
4.2 Ratings (572 Votes)
A positive charge q is fixed at the point x 0 y 0 and a negative charge 2q is fixed at the point xa    See Answer
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