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The Magnitude and the Direction of an Electric Field

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What are the magnitude and direction of the electric field at a point midway between a -8.0 µC and a +6.0 µC charge 4.0 cm apart? Assume no other charges are nearby.

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Solution Summary

The magnitude and direction of an Electric field at a midway point is determined.

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Let the test charge +q be placed midway on line joining the positions of two charges.

Force between - 8.0 uC and test charges,F1 = (K 8.0*10^-6*q)/(0.02)^2 N
Direction of force(attraction) - towards - 8.0 uC charge.

Force between +6.0 uC and test charge, F2 = (k ...

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