Respuesta :
Answer:
Explanation:
Average power per unit area =
I avg = c B₀² / 2μ₀
= 3 X 10⁸ X (3.2 X 10⁻⁷)² / 2 X 4π × 10⁻⁷
= 1.22 X 10
12 . 2 W / m²
Answer:
The average power per unit area is 12.22 W/m²
Explanation:
Given that,
Peak magnetic field [tex]B=3.20\times10^{-7}\ T[/tex]
We need to calculate the peak electric field
Using formula of electric filed
[tex]E_{peak}=B_{peak}\times c[/tex]
Put the value into the formula
[tex]E_{peak}=3.20\times10^{-7}\times3\times10^{8}[/tex]
[tex]E_{peak}=96\ N/C[/tex]
We need to calculate the average power per unit area
Using formula of average power
[tex]I=\dfrac{E_{max}^2}{2\mu_{0}c}[/tex]
Put the value into the formula
[tex]I=\dfrac{96^2}{2\times4\pi\times10^{-7}\times3\times10^{8}}[/tex]
[tex]I=12.22\ W/m^2[/tex]
Hence, The average power per unit area is 12.22 W/m²
