2. Solved Papers
  3. WB JEE Medical

WB JEE Medical WB JEE Medical Solved Paper-2007

  • question_answer
    The magnetic flux linked with the coil varies with time as \[\text{o }\!\!|\!\!\text{ =3}{{\text{t}}^{2}}+4t+9.\] The magnitude of the induced emf at 2 s is

    A)  9V                                         

    B)  16V

    C)  3V                         

    D)  4V

    Correct Answer: B

    Solution :

                     \[e=\frac{d\text{o }\!\!|\!\!\text{ }}{dt}=6t+4+0\] At \[t=2s,\,e=6\times 2+4=16\,V\]


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