CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2005

  • question_answer
    A coil having an inductance of 0.5 H carries a current which is uniformly varying from 0 to 10 A in 2 s. The emf (in volts) generated in the coil is:

    A)  10                         

    B)         5

    C)  2.5                        

    D)         1.25

    E)  0.25

    Correct Answer: C

    Solution :

    \[e=L\frac{\Delta I}{\Delta t}=0.5\times \frac{10}{2}=2.5\,V\]


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