Energy Density of Fields Calc

Energy Density of Electric and Magnetic Fields Calculator is a physics/math calculator designed to find energy density quickly and easily.

Features:
- Instant calculations
- Results can be copied to other apps
- Formulas are included as references
- Supports up to 16 decimal places
- Supports various units for each input

Energy density is described as the amount of energy stored in a region or system per unit volume. Both electric and magnetic fields can store energy. Energy density is denoted by the letter U.

In electromagnetic waves, both the magnetic and electric fields contribute equally to energy density. Therefore, the formula for energy density is the sum of the energy densities of the electric and magnetic fields.

Formula:

U = E² * (ϵ₀ / 2) + B² / (μ₀ * 2)

Where:
U - Energy density
E - Electric field
B - Magnetic field
ϵ₀ - Vacuum permittivity, ϵ₀ ≈ 8.8541 * 10^(-12) F/m
μ₀ - Vacuum permeability, μ₀ ≈ 4π * 10^(-7) H/m

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