Electricity & Magnetism

Electric Flux

Φ_{E} = E A cos θ

Electric flux through a surface.

Variables

Φ_E

Electric flux

Flux through surface

V·m

E

Electric field

Field strength

N/C

A

Area

Surface area

m²

θ

Angle

Between E and normal

°

Derivation

Φ = ∫E·dA. For uniform field: Φ = EA cos θ.

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