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VMMC VMMC Medical Solved Paper-2008

  • question_answer
    A voltmeter of range 2V and resistance 300 Q cannot be converted into ammeter of range

    A)  1 A                        

    B)                         1 mA    

    C)         100 mA                               

    D)         10 mA

    Correct Answer: B

    Solution :

                    \[I{{}_{g}}=\frac{2}{300}A\] \[=\frac{2}{300}\times 1000\,mA\] \[=\frac{20}{3}\,mA\] \[{{I}_{g}}=6.67\,mA\] 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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