12th Class Physics Sample Paper Physics Sample Paper-6

  • question_answer
    Seeta did comb on her dry hair and after combing her hair she realised that the power of attracting small bit of paper has developed in comb but her sister Geeta did the same with oily hair and realised the comb could not attract small bits of paper this time. Now Geeta overviewd the complete situation and asked her teacher the reason behind this.
    Read the above passage and answer the following questions.
    (i) What according to you are the values displayed by Seeta?
    (ii) Explain the phenomenon involved.


    (i) The values displayed by Seeta are curiosity, leadership and compassion.
    (ii) Frictional electricity Frictional electricity is the electricity produced by rubbing two suitable bodies and transfer of electrons from one body to other. Further, if the hair are oily or wet, then the friction between the hair and comb reduces and the comb will not attract small bits of paper.

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