Three equal positive charges are placed on the x-axis, one at the origin, one at x = 4 m, and the third at x = 7 m. Of the following points, which has the greatest magnitude electric field?
a. x = 3 m
b. x = 5.5 m
c. x = 8 m
d. The electric field has the same magnitude at all three positions.
e. x = 0 m
c
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