RAJASTHAN PMT Rajasthan - PMT Solved Paper-2007

  • question_answer
    The electric current passes through a metallic wire produces heat because of

    A)  collisions of conduction electrons with each other

    B)  collisions of the atoms of the metal with each other

    C)  the energy released in the ionization of the atoms of the metal

    D)  collisions of the conduction electrons with the atoms of the metallic wire

    Correct Answer: D

    Solution :

    The conduction electrons while moving towards the positive end of the conductor (responsible for the current in the conductor) lose their gained kinetic energy after colliding with the atoms/ions of the conductor, which is produced as heat.


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