2. Solved Papers
  3. NEET

NEET AIPMT SOLVED PAPER SCREENING 2010

  • question_answer
    A galvanometer has a coil of resistance 100\[\Omega \]  and gives a full scale deflection for 30 mA current. If it is to work as a voltmeter of 30 V range, the resistance required to be added will be

    A)  900\[\Omega \]  

    B)                                        1800\[\Omega \]

    C) 500\[\Omega \]               

    D)        1000\[\Omega \]

    Correct Answer: A

    Solution :

    Required resistance\[R=\frac{V}{{{i}_{g}}}-G\] \[=\frac{30}{30\times {{10}^{-3}}}-100=900\,\Omega \]


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