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

  • question_answer  Pick out the wrong statement                                 [AMU 1995]

    A)            In a simple battery circuit, the point of lowest potential is the negative terminal of the battery

    B)            The resistance of an incandescent lamp is greater when the lamp is switched off

    C)            An ordinary 100 W lamp has less resistance than a 60 W lamp

    D)            At constant voltage, the heat developed in a uniform wire varies inversely as the length of the wire used

    Correct Answer: B

    Solution :

               As temperature increases resistance of filament also increases.

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