General Questions about Eletric Field and Eletric Potential

Click For Summary
SUMMARY

The discussion focuses on the concepts of electric fields and electric potential, specifically addressing uniform electric fields and the implications of charge on electric flux. The participants clarify that the electric field can be uniform despite the presence of charges, as demonstrated in the referenced study material. Additionally, they emphasize the importance of correctly interpreting electric potential differences between points A and B, highlighting that the presence of negative charges can affect the potential readings.

PREREQUISITES
  • Understanding of electric fields and their properties
  • Familiarity with electric potential concepts
  • Knowledge of Gaussian surfaces and flux calculations
  • Ability to interpret electric field diagrams
NEXT STEPS
  • Study the relationship between electric fields and electric potential
  • Learn about Gaussian surfaces and their applications in electrostatics
  • Explore the concept of electric flux and its calculation
  • Review uniform electric fields and their characteristics
USEFUL FOR

Students of physics, educators teaching electrostatics, and anyone seeking to deepen their understanding of electric fields and potentials.

CH1991
Messages
27
Reaction score
0


Hi! I have already write everything on the pictures(In attachment), I have already circled the correct answer, however, I am not sure explain it correctly. So, can you check my explanation or question?
Thanks!

7QZOQ.png
 

Attachments

  • Physics.jpg
    Physics.jpg
    18.8 KB · Views: 495
Physics news on Phys.org
Question Two: The electric field is uniform (constant). Why do you think it isn't? See http://www.studyphysics.ca/30/fields.pdf" to check your understanding of electric field lines.

Question Five: Yes. Since you are interested in the outward flux and the enclosed charge is positive, the flux through the surface is indeed, positive.

Question Six: You have the right idea, but I wouldn't use the word enclosed since the Gaussian surface doesn't enclose the negative charge. There is an additional [negative] contribution of flux through the left end cap due to the presence of the negative charge.

Question Seven: Are you sure that the electric potential is lower at A than B?

Question Eight: Again, are you sure that the electric potential is lower at A than B?
 
Last edited by a moderator:
Thank you!
 

Similar threads

A charge inside a ring, small oscillation
  • · Replies 2 ·
Replies
2
Views
1K
Potential inside a concentric sphere
  • · Replies 1 ·
Replies
1
Views
1K
About electric fields (Symmetry)
  • · Replies 4 ·
Replies
4
Views
2K
Finding the position where the electric field is zero
  • · Replies 2 ·
Replies
2
Views
2K
Calculating eletric potential using line integral of electric field
  • · Replies 1 ·
Replies
1
Views
2K
Insulator in an electric field
  • · Replies 3 ·
Replies
3
Views
7K
Electric field calculation doubt (dipole)
  • · Replies 5 ·
Replies
5
Views
2K
Electromagnetic field theory -- Potential inside a conducting sphere
  • · Replies 9 ·
Replies
9
Views
1K
Why does electric potential energy increase if you move against the field?
  • · Replies 6 ·
Replies
6
Views
2K
Concentric Eletric Field Question
  • · Replies 1 ·
Replies
1
Views
2K