KVPY Sample Paper KVPY Stream-SX Model Paper-22

  • question_answer
    A wind powered generator converts wind energy into electrical energy. Assume that the generator converts a fixed fraction of wind energy intercepted by its blades into electrical energy. For wind speed v, the electrical power output will be proportional to

    A) \[v\]

    B) \[{{v}^{2}}\]

    C) \[{{v}^{3}}\]

    D) \[{{v}^{4}}\]

    Correct Answer: C

    Solution :

    we have got \[P=\frac{1}{2}\rho A{{v}^{3}}t\] \[\therefore \,\,\,\,\,\,P\propto {{v}^{3}}\]

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