Input impedence in the open circuit transmission line

Joy Gracia

Joy Gracia

@joy-8GOU7k • Oct 26, 2024
what is the reason for the input impedence in the open circuit transmission line to behave inductive or capacitive...?i came to know that depending upon value(+ve or -ve) of (Bl) in the expression [​IMG] it changes....is it so....please give me the explanations...
[​IMG]
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  • pratap singh, upendra

    pratap singh, upendra

    @pratap-singh-6xlmve • Sep 16, 2014

    It's the value of 'l' that appears in the argument of tangent function.

    When we move along the transmission line the value of 'l' keeps on increasing or decreasing (depending upon the reference taken) and so the value of tangent function may be positive or negative.

    This periodic change in the sign of tangent function value is the sole reason for periodic capacitive and inductive nature of the transmission line, as one moves along the line.

    Thank you.
  • Joy Gracia

    Joy Gracia

    @joy-8GOU7k • Sep 16, 2014

    proffy
    It's the value of 'l' that appears in the argument of tangent function.

    When we move along the transmission line the value of 'l' keeps on increasing or decreasing (depending upon the reference taken) and so the value of tangent function may be positive or negative.

    This periodic change in the sign of tangent function value is the sole reason for periodic capacitive and inductive nature of the transmission line, as one moves along the line.

    Thank you.
    k..i think here length is an increasing one..then here what decides the periodic change...i'm not clear enough plz help..