2. Solved Papers
  3. WB JEE Medical

WB JEE Medical WB JEE Medical Solved Paper-2007

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

    D)  \[\frac{IR{{t}^{2}}}{4.2}\]

    Correct Answer: A

    Solution :

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


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