Electromagnetic Field Theory - Engineering

Q1:

For EM wave propagation in free space, the free space is defined as

A
σ = 0, ε = 1, μ ≠ 1, = 0

B
σ = 0, ε = 1, μ = 1, = 0, = 0

C
σ ≠ 0, ε > 1, μ < 1, ≠ 0, = 0

D
σ = 0, ε = 1, μ = 1, ≠ 0, ≠ 0

ANS:D -

σ = 0, ε = 1, μ = 1, ≠ 0, ≠ 0

No answer description is available.