question_answer

  (a) What are the energy conversions in a wind energy farm? (b) What condition is necessary forwind farm to produce energy? (c) Why are wind farm expensive tomaintain?

Answer:

  (a) In wind energy farm, kinetic energy of wind is converted into electrical energy.                                                          (1) (b) To produce electric energy, wind should have minimum speed of 15 km/h.                                                   (1) (c) Wind energy farm are expensive to maintain, because they require large area of land, the initial cost of establishment of the farm is quitehigh.                                                                                                                                 (1)