2. Solved Papers
  3. CEE Kerala Engineering

CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2004

  • question_answer
    Heat produced (cals) in a resistance R when a current\[I\]amperes flows through it fort seconds is given by the expression:

    A)  \[\frac{{{I}^{2}}Rt}{4.2}\]                            

    B)  \[\frac{I{{R}^{2}}t}{4.2}\]

    C)  \[\frac{4.2IR}{{{t}^{2}}}\]            

    D)         \[\frac{IR{{t}^{2}}}{4.2}\]

    E)  \[\frac{4.5}{{{I}^{2}}Rt}\]

    Correct Answer: A

    Solution :

    \[H=\frac{{{I}^{2}}Rt}{J}=\frac{{{I}^{2}}Rt}{4.2}cal\]


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