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1. There are two point charges on the x-axis. One is at the origin and has a charge of 4 coulombs. The other is at one meter and has a charge of 6 coulombs.
a) What is the electric potential at 0.2 meters?
b) What is the electric potential at 0.8 meters?
c) How much work is needed to move a charge of 10 coulombs from 0.2 meters to 0.8 meters?
2. There are three point charges on the x-axis. One is at the origin and has a charge of 4 coulombs. The second is at 0.2 meters and has a charge of 6 coulombs. The third is at 1 meter and has 10 coulombs of charge. What is the elctric potential energy of this arrangement?
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