A two wire transmission line has a capacitance of 20 pF/m and a characteristic impedance of 50 Omega (a) What is the inductance per metre of this cable ? (b) Determine the impedance of an infinitely long section of such cable.

A two wire transmission line has a capacitance of 20 pF/m and a charac

1.	A two wire transmission line has a capacitance of 20 pF/m and a characteristic impedance of 50 Omega (a) What is the inductance per metre of this cable ? (b) Determine the impedance of an infinitely long section of such cable.
Answer» Solution :(a) The CHARACTERISTIC impendance `Z=sqrt(L//C)L=(Z^(2))(C)=(50)^(2)(20xx10^(-12))H=0.05H`. (b) The characteristic impedance of a trasnmission line is the impedance that an infinite length of line would PRESENT to a power supply at the input end of the line. Thus, `Z_(oo)=Z_(0)=50Omega`.

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A two wire transmission line has a capacitance of 20 pF/m and a characteristic impedance of 50 Omega (a) What is the inductance per metre of this cable ? (b) Determine the impedance of an infinitely long section of such cable.

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