Write the expression for the electric field E of a 300 MHz LH circularly polarized plane wave propagating in the -ve X-direction in a medium with ɛp. = 3, µ = 1, and σ = 5 (S/m).
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- Electromagnetic radiation from a 5.50 mW laser is concentrated on a 2.50 mm2 area. (a) What is the intensity in W/m2? W/m2 (b) Suppose a 6.00 nC static charge is in the beam. What is the maximum electric force (in N) it experiences? (Enter the magnitude.) N (c) If the static charge moves at 300 m/s, what maximum magnetic force (in N) can it feel? (Enter the magnitude.) NFM radio wave at 150 MHz travels along the x-axis with a magnetic field polarized along the z axis, width Bmax = 10^-4 T. The wave is reflected οn metal surface which intersects vertically the course of the wave at position x = 0. After reflection, the electric field changes phase by 180o but its width as well as its magnetic field remains the same. a) Write the expressions for the electric and the magnetic field of the incident and reflected EM wave. b) Calculate the parameters λ, β, ω, Ε max, the intensity and density of energy per unit volume of the EM field, as well as the force exerted by the EM radiation on surface if it has an area of 500 m^2. (c = 3x10^8 m/s, μ0, ε0 known).Using Maxwells equations: V-E = O SH VO VE = -m dt JF Find 17 (xY₁Z₁+) = 110 cos(B, x+B₂y + B₂ Z-w+) and Assume that Elx, y, 2₁ +) = Eo cos (B₁ x + B₂y + B₁ Z=w+) Show that I and I are perpendicular and each is transverse to the direction of propagation V x H = ‹ JE ६
- RF Electromagnetics: . If an x-component of the E-field varies as a sine function, and y-field component varies as a cosine function; assuming that the Ex=0.7Ey, what is the polarization of the resultant wave whichpropagates in the positive z-direction. For frequency f, write the full expression for the electricfield of a plane wave propagating in vacuum.What is the maximum value (in units of N/C) of the electric field Emax in an electromagnetic wave propagating in vacuum whose average intensity is I = 4 %3D W/m2?An isotropic point source emits light at wavelength 470 nm, at the rate of 210 W. A light detector is positioned 450 m from the source. What is the maximum rate dB/dt at which the magnetic component of the light changes with time at the detector's location? The speed of light is c = 3 x 108 m/s, and Ho = 47 x 107 H/m. Number 2.98754 UnitsTT/s the tolerance is +/-5%
- An AM radio transmitter broadcasts 45 kW of power uniformly in all directions.Randomized VariablesP = 45 kWd = 29 km Part (a) Assuming all of the radio waves that strike the ground are completely absorbed, and that there is no absorption by the atmosphere or other objects, what is the intensity 29 km away? Part (b) What is the maximum electric field strength at this distance, in N/C?An electromagnetic wave is normally incident on a flat surface. Assuming the power per unit area transmitted is S = 56.5 W/m2, and the surface is a perfect absorber, what is the radiation pressure (in nPa) on the surface? nPa Need Help? Read It the the line that through the tuProblem 4: Consider the 100-MHz radio waves used in an MRI device. Part (a) What is the wavelength, in meters, of these radio waves? Part (b) If the frequencies are swept over a ±14 MHz range centered on 100 MHz, what is the minimum, in meters, of the range of wavelengths emitted? Part (c) What is the maximum, in meters, of this wavelength range?