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

  • question_answer A 10 ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts   [AFMC 1997]

    A)            1310 W                                   

    B)            670 W

    C)            810 W                                      

    D)            1210 W

    Correct Answer: D

    Solution :

               \[P=\frac{{{V}^{2}}}{R}=\frac{{{(110)}^{2}}}{10}=\frac{12100}{10}=1210\,\,W\]

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