Physics, asked by hwaru, 7 months ago

The mass of an electron and a proton in a hydrogen atom is9*10 -31kg and 1.9*10-27kg respectively which is separated by a distance of 6*10-11m. Calculate the gravitational force of attraction between them.

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Answered by Anna1127
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Physics

Electric Charges and Fields

Problems Based on Coulomb's Law

Suppose the charge of a pro...

PHYSICS

Asked on October 15, 2019 byJaskaran Mahender

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 greater than atomic size) apart is zero, then Δe is of the order of [Given mass of hydrogen mh=1.67×10−27Kg]

A

10−47C

B

10−20C

C

10−23C

D

10−37C

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ANSWER

Given :  mh=1.67×10−27 kg

Net charge on hydrogen atom   q=(e+Δe)−e=Δe

Let the distance between them be d.

Equating gravitational force and the electrostatic force, we get

d2Gmh2=d2k(Δe)2

Or   d2(6.67×10−11)

Answered by ankajvaish2016
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