Physics, asked by lakshmikuar77, 2 months ago

what is the basic principle of electric? explain how it can be used for writing?

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Answered by ltzSweetAngel

2

Electric charge on ions is used for writing with an electric pen. Method : (i) Take a filter paper soaked in potassium iodide solution to which a pinch of starch is added. (ii) Place the filter paper on a metal sheet.

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