question_answer

If the magnetic field of a plane electromagnetic wave is given by (The speed of light \[=3\times {{10}^{8}}m\text{/s}\]\[B=100\times {{10}^{-6}}\sin \left[ 2\pi \times 2\times {{10}^{15}}\left( t-\frac{x}{c} \right) \right]\]then the  maximum electric field associated with it is:

A) \[6\times {{10}^{4}}\text{N/C}\]

B) \[3\times {{10}^{4}}\text{N/C}\]

C) \[4\times {{10}^{4}}\text{N/C}\]

D) \[4.5\times {{10}^{4}}\text{N/C}\]