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Question
How are the magnitudes of the electric field and magnetic field in an electromagnetic wave related?
Options
\[B_0=E_0\]
\[B_0=\frac{E_0}{c}\]
\[B_0=E_0c\]
\[B_0=\frac{c}{E_0}\]
MCQ
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Solution
Maxwell’s equations relate the field magnitudes by \[B_0=\frac{E_0}{c}\]. Equivalently, the electric-field magnitude is \[E_0=B_0c\].
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