The electric field of a plane electromagnetic wave propagating along the x direction in vacuum is $\vec{E} = E_{0} jcos (ω t - kx) .$ The magnetic field $\vec{B},$ at the moment $t = 0$ is:

Question

The electric field of a plane electromagnetic wave propagating along the x direction in vacuum is E → = E 0 jcos ( ω t - kx ) . The magnetic field B → , at the moment t = 0 is:

TestHub · Accepted Answer

B 0 = E 0 C = E 0 1 / μ 0 ε 0 = E 0 μ 0 ε 0 As the light is propagating in x direction and E ^ × B ^ | | C ^ ∴ B → should be in K ^ direction

Physics - EM Waves Question with Solution | TestHub

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