12th Class Physics Sample Paper Physics Sample Paper-1

  • question_answer Rahul put his pet dog Pluto inside a big metal kennel supported on insulating pillars and then charged the kennel by a powerful electric machine. Surprisingly Pluto remained quite safe inside the cage. Give reason. What kind of person is Rahul?

    Answer:

    Charges reside only on the surface of a conductor. Inside the conductor, charge is zero. So, even if the metallic cage was charged up with the help of powerful electric machine, the charges resided on the surface. Thus, Pluto was safe. Rahul has scientific knowledge of electricity and was Keen to know new things.


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