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

  • question_answer The heat generated through 2 ohm and 8 ohm resistances separately, when a condenser of 200\[\mu F\] capacity charged to 200 V is discharged one by one, will be [MP PET 1993]

    A)            4 J and 16 J respectively  

    B)            16 J and 4 J respectively

    C)            4 J and 8 J respectively

    D)            4 J and 4 J respectively

    Correct Answer: D

    Solution :

                       Heat generated in both the cases will be same because the capacitor has the same energy initially            \[=\frac{1}{2}C{{V}^{2}}=\frac{1}{2}\times 200\times {{10}^{-6}}\times {{(200)}^{2}}=4J\]F

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