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NEET Sample Paper NEET Sample Test Paper-53

  • question_answer
    Flux \[\phi \] (in weber) in a closed circuit of resistance \[10\,\Omega \] varies with time t (in seconds) according to the equation, \[\phi \,\,\text{=}\,\,\,6{{t}^{2}}-5t+1\]. The magnitude of the induced current in the circuit at \[t\,\,=\,\,0.25\text{ }s\] is-

    A) 0.2 A               

    B) 0.6 A

    C) 0.8 A               

    D) 1.2 A

    Correct Answer: A

    Solution :

    \[e=\frac{d\phi }{dt}\,\,=\,\,{{(12t\,-\,\,5)}_{t\,\,=\,\,0.5}}\]


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