For problems 11 to 14
Figure shows a coaxial cable with following parameters 0.5 , 2 , 4, 1, 0, 0 r r c a mm b mm = = = = = = . Problem [11] <10 points> Calculate the characteristic impedance of this transmission line. Problem [12] <10 points> A DC voltage source with an internal impedance of 40 Ohms is connected to the infinitely long coaxial cable. The source has a voltage of 10 Volts. What is the voltage on the coaxial cable? Problem [13] <10 points> A DC voltage source with an internal impedance of 40 Ohms is connected to the infinitely long coaxial cable. The source has a voltage of 10 Volts. What is the current on the coaxial cable? Problem [14] <10 points> A voltage source connected to the infinitely long coaxial cable generates a pulse at t=0. How many nanoseconds does it take the pulse travel 5 meters on the cable?
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