1. The problem statement, all variables and given/known data(adsbygoogle = window.adsbygoogle || []).push({});

Find the total charge on a circular disc of radius ρ = a if the charge density is given by

ρs = ρs0 (e^−ρ) sin2 φ C/m2 where ρs0 is a constant.

Are the two limits of integration from 0 -> a for ρ and 0->2∏ for φ? In the example given in the notes, ρ varies, instead of being a constant value. Does this mean that I cannot integrate ρ in this problem?

2. Relevant equations

Q = ∫ρdS

3. The attempt at a solution

Q = ∫∫ρs0 (e^−ρ) sin^2 (φ) dφdρ...

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# Homework Help: Continuous Surface Charge Source - Integral Confusion

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