A point charge, q = +4.7 uC, is
ed at each corner of an equilateral triangle with
des 0.21 m in length. (a) What is the magnitude of the
Sectric field at the midpoint of any of the three sides of
the triangle? (b) Is the magnitude of the electric field
at the center of the triangle greater than, less than, or
the same as the magnitude at the midpoint of a side?
Explain.