Electric field energy

Energy possessed by electric field

synonym Electric field energy (Energy possessed by electric field) generally refers to electric field energy

Electric field energy is the energy possessed by electric field, equal to Electric field energy density The integral of the space of the electric field. abbreviation Electric field energy 。

Chinese name: Electric field energy

Definition: Energy possessed by electric field
Value: Integration of electric field energy density with respect to the space of electric field

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Product Introduction

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The electric field energy is the energy possessed by the electric field, and the electric field energy is equal to Electric field energy density The integral of the space where the electric field is located, Point charge Generated electrostatic field Energy of Proportional The square of the charge of the point charge.

Capacitor energy storage

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take capacitor Energy storing expression Try to use it instead electric field intensity Expressed as Parallel plate capacitor For example:

^[1] Where:

E e Represents the electric field energy; C is the capacitance of parallel plate capacitor; U means between two boards Potential difference ； E is the electric field strength between two plates; K means electrostatic force constant ； S indicates two boards parallels juxtaposed to bring out similarities the measure of area; D is the distance between two plates.

Electrostatic field energy

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Usually, we only discuss the energy distribution in the electrostatic field

In linear homogeneous medium

Total energy W=1/2* E · D

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