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NEET Sample Paper NEET Sample Test Paper-76

  • question_answer
    If the flux linked with a circuit is given by\[\phi ={{t}^{3}}+3t-t\]. The graph between time (x- axis) and induced emf (y - axis) will be a

    A)  straight line through the origin                      

    B)  straight line with positive intercept

    C)  parabola through origin                            

    D)  parabola not through origin

    Correct Answer: D

    Solution :

    \[\phi \,\,=\,\,\,{{t}^{3}}+3t\,-t\] \[\therefore \,\,\,\,\,induced emf\]at \[\operatorname{t}=0,\,\,e=-\,3V\] \[\therefore \] Slope of graph will be a lambda not through origin


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