The electric field of a plane electromagnetic wave is given by
$\vec{E} = E_{0} \hat{i} \cos (k z) c o s (ω t)$
The corresponding magnetic field $\vec{B}$ is then given by:

Question

The electric field of a plane electromagnetic wave is given by E → = E 0 i ^ cos ⁡ k z c o s ⁡ ( ω t ) The corresponding magnetic field B → is then given by:

TestHub · Accepted Answer

E → = E 0 i ^ c o s k z c o s ω t E → = E 0 2 i ^ c o s k z - ω t + E 0 2 i ^ c o s k z + ω t B → = E 0 2 C j ^ c o s k z - ω t + E 0 2 C j ^ c o s k z + ω t = E 0 2 C j ^ 2 s i n k z s i n ω t = E 0 C j ^ s i n k z s i n ω t

Physics - EM Waves Question with Solution | TestHub

Options:

Doubts & Discussion