engineering recuitment HAL Management & Design Trainee Mock Test 2023 Electromagnetic Theory Electromagnetic Wave Propagation
The characteristic impedance η0 of a free space is
1
\(\frac{\mu _0}{\epsilon_0}\)
2
\(\sqrt{\frac{\mu _0}{\epsilon_0}}\)
3
\(\sqrt{\mu_0\epsilon_0}\)
4
μ0ϵ0