Three identical point charges (+2.0 nC) are placed at the corners of an equilateral triangle with sides of 2.0-m length. If the electric potential is taken to be zero at infinity, what is the potential at the midpoint of any one of the sides of the triangle?
a. 16 V
b. 10 V
c. 70 V
d. 46 V
e. 44 V
d
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