Four equal +6.00-?C point charges are placed at the corners of a square 2.00 m on each side. (k = 1/4??0 = 8.99 × 109 N ? m2/C2)
(a) What is the electric potential (relative to infinity) due to these charges at the center of this square?
(b) What is the magnitude of the electric field due to these charges at the center of the square?
(a) 153 kV (b) zero
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