(i) the input resistance when the output port is open circuited.

Task 1: LO2.1 (Apply two-port network model to the solution of practical problems)
Part A: For each of the attenuators shown in Fig 1 below determine the characteristic impedance R0. 
Part B: For the attenuator shown in Fig 2 below determine:
(i)    the input resistance when the output port is open circuited.
(ii)   the input resistance when the output port is short circuited.
(iii)  the characteristic impedance of the networ
Task 2: LO2.2 (Design and test symmetrical attenuators against computer models)
Part A: A T-section attenuator is needed to provide voltage attenuation of 30 dB with a characteristic impedance of 500 W.  Design an appropriate attenuator.  Ensure you show all of your calculations
Using simulation software, model the atte


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