JEE Main & Advanced Physics Current Electricity, Charging & Discharging Of Capacitors Question Bank Heating Effect of Current

  • question_answer A 10 V storage battery of negligible internal resistance is connected across a \[50\,\Omega \] resistor. How much heat energy is produced in the resistor in 1 hour                                         [Pb. PET 2001]

    A)            7200 J                                      

    B)            6200 J

    C)            5200 J                                      

    D)            4200 J

    Correct Answer: A

    Solution :

               Energy \[=\frac{{{V}^{2}}}{R}\times t=\frac{10\times 10}{50}\times 3600=7200\,J\]

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