In an electromagnetic wave, the electric magnetising fields are $100 V / m$ and $0.265$ A. The maximum energy flow is?

26.5 W / m^{2}

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36.5 W / m^{2}

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46.7 W / m^{2}

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765 W / m^{2}

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Solution

The correct option is A $26.5 W / m^{2}$
Maximum rate of energy flow, $S = E_{0} \times H_{0}$
Given, $E_{0} = 100 V / m, H_{0} = 0.265 A / m$
$∴ S = 100 \times 0.265 = 26.5 W / m^{2}$ .

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Similar questions

In an electromagnetic wave, the electric and magnetising fields are 100V $m^{- 1}$ and 0.265 $A m^{- 1}$ . The maximum energy flow is

100 V m^{- 1}

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1 \times 10^{14}

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\in_{0} = 8.8 \times 10^{- 12} C^{2} / N - m^{2}

1 \times 10^{14} Hz

4 V/m

ϵ_{0} = 8.8 \times 10^{- 12} C^{2} {/N-m}^{2}

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