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You have three identical charged spheres, each with a charge of 2.80 µC. You have arranged them so they are each at the corners of a square that measures 4m on a side. Find the magnitude of the electric field at the "empty" corner. (The corner with no charged sphere.)

  • physics -

    Apply Coulomb's law for the individual E-fields; then add them as vectors. The resultant will be directed along a diagonal.

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