|Aug3-12, 07:03 PM||#1|
Work done in bringing a charge from infinite.
1. The problem statement, all variables and given/known data
3 charges, A,B, and C are located at the vertices of an equilateral triangle. Point P is at the center of the triangle, and is 8 cm from each charge. Charge A is +7 μC. Charge B is +6 μC. Charge C is -10μC. If a 4μC charge is brought from infinite to point P, how much work was done in moving this charge to point p.
2. Relevant equations
3. The attempt at a solution
I think you're supposed to use w=fd. And i can get the force with coulombs law, but i don't understand the charge being brought from infinite.
|Aug3-12, 07:35 PM||#2|
How is the change in potential energy related to work done?
|electrostatics, infinite, work|
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