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The will calculate the electric flux produced by electric field lines flowing through a closed surface:

- When electric field is given
- When the charge is given

The electric flux (inward flux) through a closed surface when electric field is given is V ∙ m [Volt times metre] |

The electric flux (outward flux) through a closed surface when electric field is given is V ∙ m [Volt times metre] |

The electric flux through a closed surface when the charge is given using the Gauss Law is |

Electric flux calculations for inward flux |
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Φ = |E⃗ | × |A⃗ | × cos(180 - θ)Φ = | × × cos(180 - )Φ = | × × cos()Φ = | × × cos()Φ = |

Electric flux calculations for outward flux |

Φ = |E⃗ | × |A⃗ | × cosθΦ = × × cos()Φ = × × Φ = |

Electric flux Gauss Law calculations |

Φ = Q/ϵ_{0} Φ = /Φ = |

Electric Flux Calculator Input Values |

Magnitude of electric field (|E|) V/m [Volt per metre] |

Surface area^{Note 1} (|A|) m^{2} [square metres] |

Angle between electric field lines and the area vector (θ) ° [degrees] |

Electric charge (Q) C [Coulombs] |

Electric constant or vacuum permittivity (ϵ_{0}) C^{2}/N∙m^{2} |

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Section 1: Units and Measurements

Φ = |E*⃗* | × |A*⃗* | × cos(180 - θ)

Φ = |E*⃗* | × |A*⃗* | × cosθ

Φ = *Q**/**ϵ*_{0}

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