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A plane electromagnetic wave of frequency \(20\mathrm{MHz}\) propagates in free space along x-direction. At a particular…

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A plane electromagnetic wave of frequency \(20\mathrm{MHz}\) propagates in free space along x-direction. At a particular space and time, \(\vec{E}=6.6\hat{j}\mathrm{V}/\mathrm{m}\). What is \(\vec{B}\) at this point?

a

\(-2.2\times {10}^{-8}\hat{i}T\)

b

\(2.2\times {10}^{-8}\hat{k}T\)

c

\(-2.2\times {10}^{-8}\hat{k}T\)

d

\(2.2\times {10}^{-8}\hat{i}T\)

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