Manipal MET2012PhysicsElectromagnetic Waves
In an electromagnetic wave, the electric and magnetising fields are 100 ~V / m and 0.265 ~A / m . The maximum energy flow is
Options
- A26.5 ~W / m ^2
- B36.5 ~W / m ^2
- C46.7 ~W / m ^2
- D765 ~W / m ^2
Correct answer
A. 26.5 ~W / m ^2
Step-by-step solution
Maximum rate of energy flow, S=E₀ H₀ Given, E₀=100 ~V / m , H₀=0.265 ~A / m S=100 0.265=26.5 ~W / m ^2