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Consider a pair of charged particles with equal charges of
q1 = q2= +5.00 μC,
separated by a distance of 6.00 m.
a) What is the electric potential at the point directly between
them?
b) How much work must we do on a third charge,
q3 = +10.0 μC to place it at that point,
assuming it comes from very far away?
PART A:
The distance between the charged particles and the point directly between the charges is
So, the potential at that point is
Putting the values in SI units
So, the electric potential at that point is 30000 V.
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PART B:
The work done is equal to
So, the answer to this part is 0.3 J.
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