Numericals On Electrostatics (including Coloumbs Law)

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SUMMARY

The discussion focuses on calculating the electrical and gravitational forces between two particles, specifically in the context of a hydrogen atom. The distance between the electron and proton is established as 5.3 x 10-11 m, with the electron's charge being 1.6 x 10-19 C and its mass 9.1 x 10-31 kg. The gravitational force is calculated using the formula Fgravity = G(m1m2/r2), while the electric force follows a similar formula, emphasizing the need for clarity on both equations for accurate calculations.

PREREQUISITES
  • Understanding of Coulomb's Law for electric force calculations
  • Familiarity with Newton's Law of Universal Gravitation
  • Knowledge of fundamental constants such as the gravitational constant (G)
  • Basic algebra for manipulating equations and substituting values
NEXT STEPS
  • Study Coulomb's Law in detail to understand electric force calculations
  • Review Newton's Law of Universal Gravitation for gravitational force applications
  • Learn about the gravitational constant (G) and its significance in calculations
  • Practice solving problems involving forces between charged and massive particles
USEFUL FOR

Students in physics, educators teaching electrostatics and gravitation, and anyone interested in understanding the forces acting between charged particles and masses.

srijit92
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1. In hydrogen atom the distance between electron(e=1.6*10^-19 C)(Mass of electron=9.1*10^-31 kg) & proton(Mass Of proton=1.7*10^23 C) is 5.3*10^-11 m.



2. Calculate the electrical and gravitational forces between 2 particles



3. Can't do the problem... Please help!
 
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Welcome to PF!

What equations do you have for the gravitational force and the electric force?
 
So you know that

[tex] F_{gravity}=G\frac{m_1m_2}{r^2}[/tex]

so then you are given both masses, the distance apart and the gravitational constant, so this should be a straight-forward "enter the variables" type problem.

But what about the [itex]F_{electric}[/itex], what is the equation for that? (Hint: it has a similar form as the gravitational force)
 

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