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The wire in the figure to the right
has linear charge density λ. What is
the electric potential at the center of
the semicircle? Give your answer in
terms of λ, R, € and appropriate
constants. *Hint: you do not need to
integrate each segment, you can use
results from previous work. Answer:
V = 2/(4€)(1+2ln(3)/π)
2 R
2R

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