12th Class Physics Magnetic Effects of Current / करंट का चुंबकीय प्रभाव Question Bank Case Based (MCQs) - Moving Charges and Magnetism

  • question_answer
    A milliammeter of range 0 to 25 mA and resistance of \[10\,\Omega \] is 10 be convened into a voltmeter with a range of 0 to 25 V. The resistance that should be connected in series will be

    A) \[930\,\Omega \]

    B) \[960\,\Omega \]

    C) \[990\,\Omega \]

    D) \[1010\,\Omega \]

    Correct Answer: C

    Solution :

    Resistance of voltmeter \[=\frac{25}{25\times {{10}^{-3}}}=1000\,\Omega \] \[\therefore \,\,\,\,X=1000-10=990\,\Omega \]


You need to login to perform this action.
You will be redirected in 3 sec spinner