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BVP Medical BVP Medical Solved Paper-2008

  • question_answer
    A voltmeter of range 2V and resistance 300\[\Omega \]cannot be converted into ammeter of range

    A) 1 A                                         

    B) 1 mA

    C) 100 mA                

    D) 10 mA

    Correct Answer: B

    Solution :

                                 \[{{I}_{g}}=\frac{2}{300}A\] \[=\frac{2}{300}\times 1000mA\] \[=\frac{20}{3}mA\] \[{{I}_{g}}=6.67mA\] As range of ammeter cannot be decreased but can be increased only, therefore, the instrument cannot be converted to measure the range 1 mA.


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