The magnetic field of a plane electromagnetic wave is $\overrightarrow B = 3 \times {10^{ - 8}}\sin \left[ {200\pi \left( {y + ct} \right)} \right]\widehat i$ T where c = 3 $ \times $ 108 ms–1 is the speed of light. The corresponding electric field is :

Question

The magnetic field of a plane electromagnetic wave is
$\overrightarrow B = 3 \times {10^{ - 8}}\sin \left[ {200\pi \left( {y + ct} \right)} \right]\widehat i$ T
where c = 3 $ \times $ 10⁸ ms^–1 is the speed of light. The corresponding electric field is :

$\overrightarrow E = - {10^{ - 6}}\sin \left[ {200\pi \left( {y + ct} \right)} \right]\widehat k$ V/m

$\overrightarrow E = - 9\sin \left[ {200\pi \left( {y + ct} \right)} \right]\widehat k$ V/m

$\overrightarrow E = 9\sin \left[ {200\pi \left( {y + ct} \right)} \right]\widehat k$ V/m

$\overrightarrow E = 3 \times {10^{ - 8}}\sin \left[ {200\pi \left( {y + ct} \right)} \right]\widehat k$

Solution

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