Charges+Q1and –Q2are heldfixed from one another by a distance of d. Find the work done by an external applied force to move a –q from a distance d outside the negative charge (along a line joining the two fixed charges) toa pointdirectly in between thetwo fixed chargeswithoutchanging the kinetic energy of the charge, -q

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Coulomb’s Law

Coulomb's law states that the attraction or repulsion force between two charged things is proportional to the product of their charges and inversely proportional to the square of their distance. It has an effect along the line that connects the two-point charges.