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1) If the potential due to a point charge is 8.00×103V at a distance of 12.0...

1) If the potential due to a point charge is 8.00×103V at a distance of 12.0 m, what are the sign and magnitude of the charge?

2) There are two charges q1 = 35 μC and q2 = -50 μC fixed in place on the x-axis. q1 is located at x=0 and q2 is located at x=0.5 What is the location on the x-axis where the potential equals 0?

3) In nuclear fission, a nucleus splits roughly in half. (a) Ignoring the effect of electrons, what is the potential 5.50×10-14m from a fragment that has 46 protons in it? (b) What is the potential energy in MeV of a similarly charged fragment at this distance?

4) To form a hydrogen atom, a proton is fixed at a point and an electron is brought from far away to a distance of 0.529×10-10m, the average distance between proton and electron in a hydrogen atom. How much work is done?

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