• Support PF! Buy your school textbooks, materials and every day products via PF Here!

Horizontal and vertical component for electric field

  • Thread starter ToonBlue
  • Start date
26
0
1. Homework Statement

At the video length 1:25 , why does the vertical component cancel out ?


At the video length 3:55 , why does the horizontal component cancel out?
2. Homework Equations


3. The Attempt at a Solution

I don't seem to understand this part very well for the vertical and horizontal component.
 

Doc Al

Mentor
44,803
1,061
Symmetry. In the first case, you have a similar charge arrangement above and below the center, so their vertical effects cancel.
 
26
0
Does it mean that if the arc is 1/4 and not 1/2 , it will have both x and y component ? since there is no symmetry ? correct me if I am wrong
 

Doc Al

Mentor
44,803
1,061
Does it mean that if the arc is 1/4 and not 1/2 , it will have both x and y component ? since there is no symmetry ? correct me if I am wrong
I don't know what you mean. It's not the size of the arc, it's the symmetry.
 
26
0
upload_2015-9-6_23-49-22.png


What I mean is something like this? In this case , it will have both x and y component since there is no symmetry. Correct or ? am i wrong?
 

Doc Al

Mentor
44,803
1,061
What I mean is something like this? In this case , it will have both x and y component since there is no symmetry.
The symmetry will be about a line from the point O to the center of the arc. Since that's not along the x or y axis, there will be an x and y component.
 
26
0
I see thank you.
 

Want to reply to this thread?

"Horizontal and vertical component for electric field" You must log in or register to reply here.

Related Threads for: Horizontal and vertical component for electric field

Replies
1
Views
10K
Replies
7
Views
9K
Replies
29
Views
15K
Replies
2
Views
1K
Replies
1
Views
3K
Replies
3
Views
2K
Replies
4
Views
2K

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top