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JEE Main & Advanced Physics Work, Energy, Power & Collision / कार्य, ऊर्जा और शक्ति Question Bank Power

  • question_answer
    An electric motor exerts a force of 40 N on a cable and pulls it by a distance of 30 m in one minute. The power supplied by the motor (in Watts)  is                              [EAMCET 1984]

    A)             20       

    B)             200

    C)             2         

    D)             10

    Correct Answer: A

    Solution :

                P = Fv \[=F\times \frac{s}{t}=40\times \frac{30}{60}=20W\]


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