InterviewSolution
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InterviewSolution
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1. Take a plastic scale.2. Rub it on your dry hairs or on a woolen cloth.3. Take it near tiny pieces of paper.1. What do you observe?Repeat this activity by taking a comb in place of the plastic scale. What do you observe now?From the above activity you can say that tiny pieces of paper get attracted towards the plastic scale or comb. Why does this happen?when the plastic scale or comb is rubbed with dry hairs, it accumulates electrostatic charge; this electrostatically charged scale or comb exerts an electrostatic force on the pieces of paper and thus attracts them.2. What do you again observe?3. Why does this happen ? |
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Answer» 1. Tiny pieces of paper get attracted towards the plastic scale or comb 2. Pieces of paper again attracted towards the plastic scale or comb. Observation : Tiny pieces of paper get attracted towards the plastic scale or comb. 3. When the plastic scale or comp is rubbed with dry hairs it accumulates electrostatic charge. This electrostatically charged scale or comb exerts an electrostatic force on the tiny pieces of paper and thus attracts them. |
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