Unformatted text preview: σ 2 / σ 1 and their relative signs be for the electric field to be zero at r > R 2 ? To have E = 0 for r > R 2 , we must have σ 1 R 1 + σ 2 R 2 = 0 , or σ 2 / σ 1 =  R 1 /R 2 . The charge densities must have opposite signs and the inverse ratio of their respective radii. 2. Starting from Gauss’s Law, derive the electric field for a point charge, Q, i.e. Coulomb’s Law. Look at your class notes. 3. Starting from Gauss’s Law, derive the electric field for an infinite line charge with uniform linear charge density, λ . Look at your class notes. 4. Starting from Gauss’s Law, derive the electric field for an infinite sheet of charge with uniform surface charge density, σ . Look at your class notes....
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This note was uploaded on 01/23/2012 for the course PYSICS 2212 taught by Professor Jimguinn during the Fall '11 term at Georgia Perimeter.
 Fall '11
 JimGuinn

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