Electric Circuits
An electrical motor has rating of 10 MVA at 0.8 lag, represented as series RL circuit at a 50 MVA base. Find the impedance value?

 (2 + j4) pu
 (4 + j3) pu
 (3 + j4) pu
 (4 + j2 ) pu

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Electric Circuits
Pure metal generally have

  low conductivity and high temperature coefficient.
  high conductivity and large temperature coefficient.
  high conductivity and low temperature coefficient.
  low conductivity and zero temperature coefficient.

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