- #1
ObviousManiac
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Homework Statement
a +70µC charge is placed 50 cm from a -50µC charge. How much work would be required to move a -.5µC test charge from a point 10 cm from the +70µC charge to a point 20 cm from the -50µC charge?
Homework Equations
F=k(q[itex]_{1}[/itex]q[itex]_{2}[/itex]/r[itex]^{2}[/itex])
PE=Fd
...that's all I could get, I could be off by a longshot
The Attempt at a Solution
I tried solving for PE by finding the Force acting upon the test charge in its initial and final positions, and then using the difference of those two positions as the force in the PE=Fd formula, where d = .2 m
All I can say is that I was way off my teacher's given answer, which is 2.66 J.