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

  • question_answer Two wires have resistance of 2W and 4W connected to same voltage, ratio of heat dissipated at resistance is [UPSEAT 2001]

    A)            1 : 2                                          

    B)            4 : 3

    C)            2 : 1                                          

    D)            5 : 2

    Correct Answer: C

    Solution :

               \[H=\frac{{{V}^{2}}}{R}t\] Þ\[\frac{{{H}_{1}}}{{{H}_{2}}}=\frac{{{R}_{2}}}{{{R}_{1}}}=\frac{4}{2}=\frac{2}{1}\]

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