Question
Download Solution PDFThe numerical value of the ratio of electric field intensity E and magnetic field intensity H is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe intrinsic impedance of the wave is defined as the ratio of the electric field and the magnetic field phasor (complex amplitude), i.e.
For free-space, the intrinsic impedance is a real quantity, i.e.
η = η0 = 120π
η ≈ 377 Ω
Notes:
A uniform plane wave has the following properties:
- The electric and magnetic fields are perpendicular to each other which are also perpendicular to the direction of propagation.
- They are also called as (Transverse electromagnetic wave) TEM waves.
- The ratio
for the wave is equal to the intrinsic impedance of the medium, η.
Last updated on Jun 23, 2025
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