Question: (a) Find the electric field (magnitude and direction) a distance z above the midpoint between two equal charges, q, a distance d apart (Fig. 2.4).

(a) Find the electric field (magnitude and direction) a distance z above the midpoint between two equal charges, q, a distance d apart (Fig. 2.4). Check that your result is consistent with what you'd expect when z >> d.

(b) Repeat part (a), only this time make the right-hand charge â€“ q instead of+q.

9 d/2 d/2 q

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