Spherical distribution of negative charge with two protons

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SUMMARY

The discussion focuses on the spherical distribution of negative charge with two protons embedded within it. The negative charge has a uniform density equivalent to that of two electrons, and the protons must be positioned on the surface of a concentric sphere to ensure that the net force on each proton is zero. The enclosed charge within this new sphere can be determined using the formula dq = σ dV, where σ represents the surface charge density. The electric field generated by the negative charge allows for the calculation of the force exerted on each proton, which must equal the repulsive force between the two protons.

PREREQUISITES
  • Understanding of electrostatics, specifically Coulomb's Law
  • Familiarity with electric fields and charge distributions
  • Knowledge of spherical coordinates and volume integration
  • Proficiency in using the formula dq = σ dV for charge calculations
NEXT STEPS
  • Study the concept of electric fields generated by spherical charge distributions
  • Learn about the implications of uniform charge density in electrostatics
  • Explore the derivation of forces between charged particles in electrostatic systems
  • Investigate the principles of equilibrium in systems with multiple charges
USEFUL FOR

This discussion is beneficial for physics students, electrical engineers, and anyone interested in electrostatics and charge interactions in spherical systems.

nixx986
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Imagine a sphere of radius a filled with negative charge of uniform denisty, the total charge being equivalen to that of two electrons. Imbed in this jelly of negative charge two protons and assume that in spite of their presence the negative charge distribution remains uniform. Where must the protons be located so that the force on each of them is zero?
 
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well ok imagine there's a concetric sphere inside the main sphere where the protons are on the surface of this new sphere. In this new sphere what is the eenclosed charge??
remember dq = o dV where o is sigma
from here u can find the elctric field due to the negative charge of the sphere inside. From the electric field u can calculate the force of the negative sphere upon each proton. Also find hte force between the protons. the force of the negative sphere on each of the protons must be the same as the repulsive force of the protons on each other.
 

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