An electron and a proton are lying 10 cm apart The ratio of electrostatics force and gravitational force between them will be

Dear pallavi

me =9.1 * 01^-31

mp = 1.6 * 10^-27

qe = -1.6 *10^-19

qp =1.6 *10^-19

Fg =Gm_em_p/(10)²

Fe =1/4∏ε q_eq_p/(10)²

  Fe/Fg = (1/4∏ε) q_eq_p /Gm_em_p

             = 9*10⁹ *(1.6 *10^-19)²/(6.67*10^-11 * 9.1 * 10^-31 *1.6 * 10^-27 )

           =.23 * 10 ⁴⁰

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