In an electromagnetic wave, the electric and magnetising fields are 100V $m^{- 1}$ and 0.265 $A m^{- 1}$ . 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 $W / m^{2}$

Here $E_{0} = 100 V / m, B_{0} = 0.265$ A/m.

$∴$ Maximum rate of energy flow $S = E_{0} \times B_{0}$
$= 100 \times .265 = 26.5 \frac{W}{m^{2}}$

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In an electromagnetic wave, the electric and magnetising fields are 100V m−1 and 0.265 Am−1. The maximum energy flow is

The correct option is A 26.5 W/m2 Here E0=100 V/m, B0=0.265 A/m. ∴ Maximum rate of energy flow S=E0× B0 =100× .265=26.5Wm2

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

The correct option is A
26.5 $W / m^{2}$

Here $E_{0} = 100 V / m, B_{0} = 0.265$ A/m.

$∴$ Maximum rate of energy flow $S = E_{0} \times B_{0}$
$= 100 \times .265 = 26.5 \frac{W}{m^{2}}$