2. Questions Bank
  3. 12th Class
  4. Physics
  5. Magnetism

12th Class Physics Magnetism Question Bank MCQs - Moving Charges and Magnetism

  • question_answer
    A galvanometer of 100 \[\Omega \] resistance gives full scale deflection for 10 mA current. To use it as an ammeter of 10 A range, the resistance of the shunt required is

    A) 10 \[\Omega \]

    B) 0.10 \[\Omega \]

    C) 0.01 \[\Omega \]

    D) 0.001 \[\Omega \]

    Correct Answer: B

    Solution :

    Option [b] is correct Explanation: \[S=\frac{{{i}_{g}}G}{i-{{i}_{g}}}=\frac{100\times 0.01}{10-0.01}=0.1\Omega \]


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