Answer:
[tex]B_{m}=1.4333*10^{-8}T[/tex]
Explanation:
Given data
Ex = Ey = 0
Ez=(4.3V/m)cos(π×10¹⁵s⁻¹)(t-x/c)
To find
The amplitude of the magnetic field component
Solution
The electric field is given by:
Ez=(4.3V/m)cos(π×10¹⁵s⁻¹)(t-x/c)
Where Em=4.3 V/m
The magnitude of magnetic field is given by:
[tex]B_{m}=\frac{E_{m}}{c}[/tex]
Where Em is amplitude of electric field and c is speed of light.
Substitute the given values
So
[tex]B_{m}=\frac{4.3V/m}{3.0*10^{8}m/s }\\B_{m}=1.4333*10^{-8}T[/tex]