The electric field strength in an EM wave is | vedclass

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Question

(D) The relationship between the electric field magnitude $E$ and the magnetic field magnitude $B$ in an electromagnetic wave is given by the equation

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$3.3 	imes 10^{-5}$

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(D) The relationship between the electric field magnitude $E$ and the magnetic field magnitude $B$ in an electromagnetic wave is given by the equation $E = B \cdot c$,where $c$ is the speed of light in vacuum.Given: $E = 10^4 \, V/m$ and $c = 3 	imes 10^8 \, m/s$.Rearranging the formula to solve for $B$: $B = \frac{E}{c}$.Substituting the values: $B = \frac{10^4}{3 	imes 10^8} \, T$.$B = \frac{1}{3} 	imes 10^{4-8} \, T = 0.333 	imes 10^{-4} \, T = 3.33 	imes 10^{-5} \, T$.Therefore,the magnitude of the magnetic field strength is $3.3 	imes 10^{-5} \, T$.

The electric field strength in an $EM$ wave is $10^4 \, V/m$. The magnitude of the magnetic field strength (in tesla) will be:

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