Net Electric Flux: Homework Part A, Part B

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SUMMARY

The discussion focuses on calculating the net electric flux through spheres in two scenarios involving point charges q1 = -6Q and q2 = +2Q. For Part A, the net electric flux through a sphere of radius 2a centered at the origin is determined to be -4Q/E. In Part B, the net electric flux through a sphere of radius 2a centered at x = 2a is calculated to be +2Q/E0, as it only encloses the positive charge q2.

PREREQUISITES
  • Understanding of Gauss's Law in electrostatics
  • Familiarity with electric flux concepts
  • Knowledge of point charge behavior in electric fields
  • Basic skills in sketching geometric representations of electric fields
NEXT STEPS
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  • Learn about electric flux calculations for various charge configurations
  • Explore the concept of electric field lines and their relation to charge distributions
  • Investigate the effects of charge placement on electric flux through different surfaces
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Students studying electromagnetism, physics educators, and anyone preparing for exams involving electric field concepts and calculations.

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Homework Statement



This is the question.
Charges q1= -6Q and q2 = +2Q are located at x =-a and x = +a, respectively.

Homework Equations


Part A
What is the net electric flux through a sphere of radius 2a centered at the origin?
Part B
What is the net electric flux through a sphere of radius 2a centered at x=2a?

NEED help with part B

The Attempt at a Solution



For part A
i did \Phi = (-6Q+2Q)/E ; so = -4Q/E
 
Last edited:
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Draw a 2D sketch of the sphere in part B...which charge(s) does it enclose?
 
i have got the answer
thanks anyway,, for part B
i got +2Q/E0
 

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