The Poynting vector of plane EM wave traveling in a medium represents Select one:a. Powerb. Power Densityc. Energyd. Energy Density

In a plane EM wave, the electric field oscillates sinusoidally at a frequency of 5×1010 Hz and an amplitude of 50Vm−1. The total average energy density of the electromagnetic field of the wave is : [Use ε0=8.85×10−12C2/Nm2 ]

Identify the correct statementa) Poynting vector, its direction indicates direction of power flowb) Poynting vector, its direction is normal to the plane containing vector E and vector Hc) Poynting vector is particularly useful for calculating power flow of electromagnetic waved) All the aboveSelect one:dabc

For the plane electromagnetic wave given by E=E0sin(ωt–kx) and B=B0sin(ωt−kx), the ratio of average electric energy density to average magnetic energy density is

.Energy is not carried by*1 point(a) Longitudinal progressive waves(b) Electromagnetic waves(c) Transverse progressive waves(d) Stationary wave

A uniform plane wave in air with H =4 sin (ωt-5x) ay A/m is normally incident on a plastic region with parameters ε = 4ε0, µ=µ0,σ=0. Determine the total electric field in air, and calculate the average power density in the plastic region using Poynting theorem.