Smorte
Mar23-11, 03:19 PM
1. The problem statement, all variables and given/known data
Calculate the energy density for the magnetic field (1/2 B*H) for normal incidence. The materials are non-magnetic. How does the sum of power densities (1/2 D*E) + (1/2 B*H) depend on z for normal incidence?
The parenteses are the time average, I just can't make the sign. \left\langle
2. Relevant equations
The electric field is E = sin(wt-kz), how does the electric field depend on B-field and H-field for a non-magnetic material?
3. The attempt at a solution
Since we don't know how the E-field depends on the B- and the H-field. Is E-field a non-vector, when z is in the equation of E? We are lost, please help us :)
Calculate the energy density for the magnetic field (1/2 B*H) for normal incidence. The materials are non-magnetic. How does the sum of power densities (1/2 D*E) + (1/2 B*H) depend on z for normal incidence?
The parenteses are the time average, I just can't make the sign. \left\langle
2. Relevant equations
The electric field is E = sin(wt-kz), how does the electric field depend on B-field and H-field for a non-magnetic material?
3. The attempt at a solution
Since we don't know how the E-field depends on the B- and the H-field. Is E-field a non-vector, when z is in the equation of E? We are lost, please help us :)