EM wave

[logistic_guy]

If the magnetic field in a traveling EM wave has a peak value of $\displaystyle 17.5 \ \text{nT}$, what is the peak value of the electric field strength?

 

[khansaheb]

If the magnetic field in a traveling EM wave has a peak value of $\displaystyle 17.5 \ \text{nT}$, what is the peak value of the electric field strength?

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[logistic_guy]

The relation between electric field and magnetic field is given by:

$\displaystyle \frac{E_0}{B_0} = c$

Then,

$\displaystyle E_0 = B_0c = 299792458(17.5 \times 10^{-9}) = \textcolor{blue}{5.25 \ \text{V/m}}$