Understanding the Components of Electric Charge Equation

Click For Summary
SUMMARY

The discussion centers on the derivation of the electric charge equation components, specifically the terms SQRT(3Q) and 2L^2. Participants clarify that these components arise from breaking the electric field vector into its x and y components using trigonometric functions. The cosine and sine values for a 30-degree angle, specifically cos(30) = SQRT(3)/2 and sin(30) = 1/2, are essential for understanding this breakdown. A foundational knowledge of trigonometry is necessary to grasp these concepts fully.

PREREQUISITES
  • Understanding of electric field vectors
  • Basic trigonometry, including sine and cosine functions
  • Familiarity with the concept of electric charge
  • Knowledge of vector decomposition
NEXT STEPS
  • Study the derivation of electric field equations in physics
  • Learn about vector decomposition techniques in physics
  • Review trigonometric functions and their applications in physics
  • Explore the principles of electric charge and its effects on electric fields
USEFUL FOR

Students studying physics, particularly those focusing on electromagnetism, and anyone seeking to understand the mathematical foundations of electric charge equations.

tchounkovskii
Messages
7
Reaction score
0

Homework Statement


The question lies in the equation, I do not understand where the SQRT of 3Q or the 2L^2 is coming from?

Can somebody help me with this? The professor kinda breezed by this but I cannot find a valid explanation anywhere!

Thanks in advance!
 

Attachments

  • Picture 3.png
    Picture 3.png
    3.6 KB · Views: 449
Physics news on Phys.org
It looks like they are breaking the electric field vector into its x and y components. Knowing a little bit of trig you get cos(30) = sqrt(3)/2 and sin(30) = 1/2.
 
oh ok, see...i didn't take trig in HS :( I should have known better..oh well. thanks for the help.
 

Similar threads

  • · Replies 2 ·
Replies
2
Views
2K
Replies
5
Views
569
Replies
23
Views
4K
  • · Replies 26 ·
Replies
26
Views
3K
Replies
12
Views
2K
  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 16 ·
Replies
16
Views
4K
  • · Replies 17 ·
Replies
17
Views
2K
  • · Replies 13 ·
Replies
13
Views
3K
  • · Replies 11 ·
Replies
11
Views
2K