Contents

Electromagnetic Theory
Vector Analysis
Electrostatics
Magnetostatics
Maxwell Equations
Wave Propagation
Transmission Lines
Antennas
Other Topics
Other Subjects
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14 of 15 articles

Energy Stored in Electric Field

W = (1/2)epsilon*E² per unit volume, total energy.

Darshan N
Updated: 19 March 2026
6 min read

Energy in Electric Field

Test your understanding of energy storage in electric fields and capacitors.

Question 1 of 3

Q1.The energy density (energy per unit volume) stored in an electric field E in a medium of permittivity ε is: