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Problem: How much work in joules is required to set up the four-charge configuration of the figure if q = 4.10 pC, a = 74.0 cm, and the particles are initially infinitely far apart and at rest?

FREE Expert Solution

The work required is given by the change in potential energy for the four charge configuration.

That is,

W=U, where W is work and U is potential energy. 

The electrostatic potential energy:

U=kq1q2r, where k is Coulomb's constant and r is the distance between two charges q1 and q2.

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Problem Details

How much work in joules is required to set up the four-charge configuration of the figure if q = 4.10 pC, a = 74.0 cm, and the particles are initially infinitely far apart and at rest?

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