Step 3: Evaluate the contribution from the infinitesimal charge element

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[line of charge]

Considering a positive test charge at point P, the direction of the electric field is shown. The strength of the electric field contribution from the infinitesimal charge shown is proportional to dq and inversely proportional to the square of the distance separating point P and the charge element.


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Last updated Sept. 24, 1997.
Copyright George Watson, Univ. of Delaware, 1997.