Power Systems
For a lossy transmission line, the characteristic impedance does not depend on

 The conductivity of conductors.
 The operating frequency of the line.
 The load terminating the line.
 The permittivity of the dielectric separating the conductor.

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Power Systems
Which statement is not correct for the transmission line parameter R, L, G and C

 G = I/R. R is the AC resistance per unit length of conductor C.
 At high frequencies at which most of communication system operate the internal inductance of the conductor is neglected.
 The line parameter R,L,G and C are uniformly distributed along the entire length of the line C.
 For each line, the conductors are characterized by σ c, μ c, εo = ε c and the homog

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Power Systems
Which of the following statements is true? Corona loss increases with

 decrease in conductor size and decrease in supply frequency
 increase in conductor size and decrease in supply frequency
 increase in conductor size and increase in supply frequency
 decrease in conductor size and increase in supply frequency

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