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Question: 1 determine an expression for the electric field of a...

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1) Determine an expression for the electric field of a disk of radius a and uniformly charged h a total charge Q as a function of a, z, and Q [E(a, z, Q)]. [Hint: You can use the principle of superposition here and you already have an expression for the electrie field of a charged rin...] E(2K a) the electric field you calculated in question l. The first Find E(z >> a), and one should look familiar to you, what does it look like? Hang on to the second one, it is the same as the expression for the electric field of an infinitely large plane, you will see it again. 2) 3) Plot E(z) (for + and - values of z) E(2)
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