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  • The magnetic field in a travelling electromagnetic wave has a peak value of 20 nT. The peak value of electric field strength isOption: 1 12 V/m</

The magnetic field in a travelling electromagnetic wave has a peak value of 20 nT. The peak value of electric field strength is

Option: 1

12 V/m


Option: 2

3 V/m


Option: 3

6 V/m


Option: 4

9 V/m


Answers (1)

best_answer

In an electromagnetic wave, the peak value of the electric field \left(\mathrm{E}_0\right) and peak value of magnetic field \left(\mathrm{B}_0\right) are related by

\begin{aligned} &\mathrm{E}_0=\mathrm{B}_0 \mathrm{C}\\ \\&\mathrm{E}_0=\left(20 \times 10^{-9} \mathrm{~T}\right)\left(3 \times 10^8 \mathrm{~m} \mathrm{~s}^{-1}\right)=6 \mathrm{~V} / \mathrm{m} \end{aligned}

Posted by

Gautam harsolia

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