Suppose sunlight just outside earth's atmosphere has an intensity of 1.47 kw/m2. calculate (a) em and (b) bm for sunlight there, assuming it to be a plane wave.

Respuesta :

Intensity of the sunlight and magnetic field amplitude will be 1.03 ×10³ V/m and 3.43 ×10⁻⁶ T respectively.

What is a magnetic field?

It is the type of field where the magnetic force is obtained. With the help of a magnetic field. The magnetic force is obtained, it is the field felt around a moving electric charge.

The intensity of the sunlight is found as;

[tex]\rm I = \frac{E_m^2}{2 \mu_0C} \\\\ E_m= \sqrt{2 \mu_0I_c} \\\\ E_m=\sqrt{(2 \times 4 \pi \times 10^{-7} m/A)(1.40 \times 10^3 \ W/m^2 )(2.988 \times 10^8 m/sec)} \\\\ E_m=1.03 \times 10^3\ V/m[/tex]

The magnetic field amplitude is found as;

[tex]\rm B_m= \frac{E_m}{c} \\\\\ B_m=\frac{1.03 \times 10 \ V/m^}{3 \times 10^8 \ m/sec} \\\\ B_m=3.43 \times 10^{-6} \ T[/tex]

Hence, intensity of the sunlight and magnetic field amplitude will be 1.03 ×10³ V/m and 3.43 ×10⁻⁶ T respectively.

To learn more about the magnetic field, refer to the link;

https://brainly.com/question/19542022

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