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How far apart the two electrons …

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How far apart the two electrons be if the force between them equals to the weight of an electron

    • Posted by Pragati Tiwari 7 years, 5 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Shajith Shajith 7 years, 5 months ago

    Let, r= distance b/w two electrons F= force exerted by one electron to other F= Ke2/r2 Weight of electron=mg Ke2/r2=mg 9×10^9 ×{1.6×10^-19}2/r2 =9.1×10^-31×10 r2 = {9×2.56/9.1}×10^-38+30+9 =25.31 Therefore, r=5.03 m

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