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Explain how the attenuation constant value is an important factor for propagation of a transverse electromagnetic wave in a medium. (5 marks)
The red wire rectangular loop shown in Figure 1.1 is inside a uniform magnetic field ???⃗=50??⃗??+50??⃗?? mWb/m2. The side ???? of the loop cuts the flux lines at the frequency, ?? (in unit Hz) and the loop lies in the ????-plane at time, t = 0.a) Find the induced current at the resistor 1 Ω. (10 marks)b) By keeping the size of AB, BC, CD, and DA, suggest three the methods to increase the amplitude of the induced current? Explain...
As an electrical engineer, you are required to construct a bounce diagram for a lossless type of transmission lines as in Figure 3.1 to be operated in a frequency, ??=1 GHz. The transmission line is constructed as two parallel wires (Figure 3.2) with diameter, ??=2?? (unit in mm) and separated from center to center by distance, ?? (unit in mm). The relative permittivity, ???? is 2, and permeability, ??=????. The length, ?? of the lines is 100 m. Given ????=0.5????,...
a) The magnetic field intensity of a uniform plane wave in a conductor (?? =????,??=????) is ????⃗=20??−12??cos(2??? ?? + 12? )??⃗?? mA/m. Calculate the conductivity,?? value and the corresponding ???⃗ field if ??=106 Hz. (5 marks)