5) Gauss Law is only approximate for finite lines and sheets. In this section you will compare the results of Gauss' Law, calculated for ideal symmetries, with exact calculations using Coulomb’s Law. (If the difference between Gauss’ Law and exact calculation is less than 2%, it's “good enough for Physics 2 and MasteringPhysics.") a. Circular Disk: The electric field on the axis of a circular disk of charge density o is E,(z) = at a distance of z from the disk. Gauss’ Law predicts a field of E,(z) =. At what 2 +1 280 2ɛ0 value of z/R does the prediction of Gauss’ Law differ from Coulomb’s law by 2%? Explain your logic in finding this number.

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5. Write down the definition of Gauss's law. Determine how we would obtain Coulomb's law from Gauss's law for a single charged particle. What other types of symmetries are there with Guass's law? Under what circumstance does Gauss's law not behave nicely? give an example.

1. [-/2 Points] DETAILS SERPSE10 41.3.OP.004. MY NOTES (a) A hydrogen atom is initially in the ground state. How much energy (in ev) is required to lonize it? ev (b) A hydrogen atom is initially in its third excited state (that is, its n = 4 state). How much energy (in ev) is required to ionize it? ev Submit Answer