Physics, 22.07.2019 22:30 johncruzguerrero70

Apoint charge is placed at each corner of a square with side length a. all charges have magnitude q. two of the charges are positive and two are negative (fig. e21.42). what is the direction of the net electric field at the center of the square due to the four charges, and what is its magnitude in terms of q and a

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Apoint charge is placed at each corner of a square with side length a. all charges have magnitude q....