2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-24

  • question_answer
    A bar magnet of length \[l\] and magnetic dipole moment M is bent in the form of an arc as shown in the figure. The new magnetic dipole moment will be

    A)  M                               

    B)  \[\frac{3}{\pi }M\]

    C)  \[\frac{2}{\pi }M\]                    

    D)  \[\frac{M}{2}\]

    Correct Answer: B

    Solution :

     \[M=mL\] \[L=\frac{\pi }{3}\times r\Rightarrow r=\frac{3L}{\pi }\] \[M'=m\times r=m\frac{3L}{\pi }=\frac{3M}{\pi }\]


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