Power Systems
Critical disruptive voltage is a voltage at which

 both 1 and 2
 corona is visible with blue or violet colour
 corona is just initiated
 nether 1 nor 2

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Power Systems
A sodium graphite reactors use

  sodium as coolant and graphite as moderator.
 a mixture of sodium and graphite as moderator.
 a mixture of sodium and graphite as coolant.
 sodium as moderator and graphite as coolant.

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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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