Answer:
2.7 * 10⁻¹³ T
Explanation:
The electromagnetic wave is produced when an oscillating electric and magnetic field interacts each other perpendicularly.
In an electromagnetic wave, the electric field peak magnitude E and the magnetic field peak magnitude B are related by
[tex]E = cB[/tex]
where ,
c = 3 * 10⁸m/s
E = 8.1×10−5V/m
the peak magnitude of the magnetic field:
[tex]B = \frac{E}{C} \\B = \frac{8.1 \times 10^-^5 }{3 \times 10^8 } \\= 2.7 \times 10^-^1^3[/tex]
2.7 * 10⁻¹³ T