A plane electromagnetic wave with frequency of 30 MHz travels in free space. At particular point in space and time, electric field is 6 V/m. The magnetic field at this point will be x $\times$ 10$-$8 T. The value of x is ___________.
Answer (integer)
2
Solution
$|B|\, = {{|E|} \over C} = {6 \over {3 \times {{10}^8}}}$<br><br>= 2 $\times$ 10<sup>$-$8</sup> T<br><br>$\therefore$ x = 2
About this question
Subject: Physics · Chapter: Electromagnetic Waves · Topic: Properties of EM Waves
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