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NEET Sample Paper NEET Sample Test Paper-27

  • question_answer
    An electric bulb is rated \[220V,\text{ }60W,\] the electrical resistance is nearly:

    A)  \[0.807\,\Omega \]                 

    B)  \[16\,\Omega \]

    C)  \[908\,\Omega \]                    

    D)  \[807\,\Omega \]

    Correct Answer: D

    Solution :

    The relation between R and V and P is \[R=\frac{{{V}^{2}}}{P}\] Given,   \[V=200\]volt and \[P=60\]watt             \[R=\frac{220\times 220}{60}=807\Omega \]


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