2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-38

  • question_answer
    The magnetic flux linked with a coil, in webers, is given by the equations \[\phi =3{{t}^{2}}+4t+9.\] Then the magnitude of induced e.m.f. at f= 2 second will be

    A)  2 volt         

    B)  4 volt

    C)  8 volt        

    D)  16 volt

    Correct Answer: D

    Solution :

     \[e=-\frac{d\phi }{dt}=\frac{d}{dt}(3{{t}^{2}}+4t+9)=-(6t+4)\] \[=-[6(2)+4]=-16\Rightarrow |e|=16\,\text{volt}\]


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