A lossless transmission line, 800 meters long, has a characterstic resistance of 50? and a phase velocity of 2 x108 m/s. The initially quiescent line is connected as shown below, and the switch S is closed at time t = 0. Calculate R, L, G and C for this line. At What time will the traveling-wave transient die, i.e at what time will the voltage and current at any fixed point on the line become constant? What is the final value of the current in RL The voltage and current on a semi-infinite transmission line are Vx,t=80e-0.002xCos106t-200-0.01x Volts ix,t=4e-0.002xSin106t+400-0.01x Amperes Calculate the characteristic impedance of the line Zo What is the propagation coefficient ?? Calculate the attenuation a in dB per wavelength at the operating frequency
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