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In the electric field excited by a point charge
-9,
(1) if zero potential is infinite, find the
electrical potential of point M.
(2) if zero potential is point P, find the
electrical potential of point M.
-q
a
P
a
M

Expert Solution

Introduction:

We are given 2 cases. In first case zero potential is chosen at infinity. In second case, zero potential is chosen at point P. We find the potential at point M in both cases. Potential difference between 2 points is the work done in moving a unit positive charge from one point to another.

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