The amplitude of magnetic field in an electromagnetic wave propagating along y-axis is $6.0 \times 10^{-7} \mathrm{~T}$. The maximum value of electric field in the electromagnetic wave is
Solution
In an electromagnetic wave, the maximum value of the electric field E is related to the maximum value of the magnetic field B by the equation
<br/><br/>
$E = cB$
<br/><br/>
where c is the speed of light in a vacuum, which is approximately $3 × 10^8 m/s$.
<br/><br/>
Given that the amplitude of the magnetic field B is $6.0 × 10^{-7} T$, we can substitute these values into the equation to find the maximum value of the electric field:
<br/><br/>
$E = (3 × 10^8 m/s) \times (6.0 × 10^{-7} T) = 180 V/m$
<br/><br/>
Therefore, 180 V/m is the correct answer.
About this question
Subject: Physics · Chapter: Electromagnetic Waves · Topic: Maxwell's Equations
This question is part of PrepWiser's free JEE Main question bank. 109 more solved questions on Electromagnetic Waves are available — start with the harder ones if your accuracy is >70%.