Net electric field-magnitude and direction
Two charges are placed on the x axis. One charge (q1 = +18.5 µC) is at x1 = +3.0 cm and the other (q2 = -13 µC) is at x2 = +9.0 cm. Find the net electric field (magnitude and direction) at the following locations.
(a) x = 0 cm
(b) x=+6.0 cm
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