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An electron and a proton are lying 10 cm apart.The ratio of electrostatics force and gravitational force between them will be
Fg = Gm1m2/r2
Fe = kq1q2/r2
K=9.0x109 G=6.67x10-11 Mass of proton aprox: 1.672x10-27 kg Charge of a proton: 1.602x10-19
Mass of electron aprox: 9.1x10-31 kg Charge of a electron: -1.602x10-19
Fe/Fg = Gm1m2/kq1q2/
=4.4x10-40
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Regads
Ramesh
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