Phys 226 Gauss' Law

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Last updated 4:35 AM on 6/25/26
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10 Terms

1
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Φ

Flux

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ΦE= EACosθ

Flux when electric field goes through a surfce. electric field x Area x angle btwn E and surface

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What is θ for electric field flux when parallel, perpendicular to surface. and what is its corresponding flux

(perpendicular=0º Φ=EA, parallel=90º Φ=0)

4
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Φnet=qenc/ε0

flux for an enclosed surface

5
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Steps for Gauss’ Law problems

  1. shape

  2. find charge enclosed at specific radius

  3. EA= =qenc/ε0.

  4. solve for E

  5. direction (pos: field points outwards, neg: field poits inwards)

6
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E=k (Q/r²)

point charge outside charged spherical object

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Electric field while inside a charged spherical shell

E=0

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9
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E=λ /2πε0r OR E=2kλ/r

infinite line charge

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E=σ/2ε0

infinite sheet