Physics · Electrostatics and Gravitation
Suppose the charge of a proton and an electron differ slightly. One of them is -e, the other is (e + Δe). If the net of electrostatic force and gravitational force between two hydrogen atoms placed at a distance d (much great er than atomic size) apart is zero, then Δe is of the order of: [Given mass of hydrogen mh = 1.67 × 10-27 kg, G = 6.67 × 10-11 N m2/kg2]
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10-37 C
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