Power Systems
For a fixed value of complex power flow in a transmission line having a sending end voltage V, the real power loss will be proportional to

 V.
 V2.
 1 / V.
  1 / V2.

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Power Systems
An hydro-graph indicates

 the discharge at any time during the period under consideration.
 the average run off during the period.
 the maximum and minimum run off during the period.
All of these

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