Physics: If the intensity of an electromagnetic wave is 80 mw/m2, what is the amplitude of the magnetic field of this wave? (c=3.0×108m/s, μ0=4π×10−7t⋅m/a, ε0=8.85×10−12c2/n⋅m2)

If the intensity of an electromagnetic wave is 80

Ответ:

biba54

11.03.2022

Physics

The the amplitude of the magnetic field of this wave is $2.4\times10^{5}\ N/C$

Explanation:

Given that,

Intensity S= 80 Mw/m^2

We need to calculate the amplitude of the magnetic field

Using formula of intensity

$S=\dfrac{E_{m}^2}{2c\mu_{0}}$

Where, $E_{m}$ =Amplitude of an electromagnetic wave

c = speed of light

Put the value into the formula

$E_{m}^2=80\times10^{6}\times2\times3\times10^{8}\times4\pi\times10^{-7}$

$E_{m}=245598.40\ N/C$

$E_{m}=2.4\times10^{5}\ N/C$

Hence, The the amplitude of the magnetic field of this wave is $2.4\times10^{5}\ N/C$

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Ответ:

elijiahman99

26.03.2022

Physics

Precipitation is part of the water cycle. In the water cycle, water from oceans, lakes, swamps, rivers, plants can turn into water vapor. Water vapor condenses into millions of tiny droplets that form clouds. ... When precipitation comes down to the earth in the liquid form, it is called rain

Explanation:

did some research, lmk if it helps! :)

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If the intensity of an electromagnetic wave is 80 mw/m2, what is the amplitude of the magnetic field of this wave? (c=3.0×108m/s, μ0=4π×10−7t⋅m/a, ε0=8.85×10−12c2/n⋅m2)

Ответ:

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