question_answer

A plane electromagnetic wave of frequency 50 MHz travels in free space along the positive x - direction. At a particular point in space and time, \[\overrightarrow{E}=6.3\hat{j}V/m.\] The corresponding magnetic field \[\overrightarrow{B}\], at that point is \[x\times {{10}^{-\,8}}\hat{k}\,T\]. Find the value of x.

Answer:

2.1