Contents

Electromagnetic Theory
Vector Analysis
Electrostatics
Magnetostatics
Maxwell Equations
Wave Propagation
Transmission Lines
Antennas
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Electric Flux Density

D = epsilon*E, displacement vector, flux concept.

Darshan N
Updated: 19 March 2026
12 min read

Electric Flux Density

Test your command of the displacement vector D and its independence from permittivity.

Question 1 of 3

Q1.In a medium with relative permittivity εr = 4, the electric field E = 100 V/m. The electric flux density D is: