What is the magnitude of the force of particles?

Click For Summary

Discussion Overview

The discussion revolves around a homework problem involving the calculation of the electrostatic force between two charged particles, given specific conditions regarding their charges and distance. Participants explore the application of Coulomb's Law to determine how changes in charge and distance affect the force.

Discussion Character

  • Homework-related
  • Mathematical reasoning
  • Technical explanation

Main Points Raised

  • One participant presents a homework problem involving two charged particles with an initial electrostatic force of 10 N and asks for help in determining the new force when one charge is three times the other and the distance is increased to five times.
  • Another participant suggests recalling relevant equations, prompting a discussion about Coulomb's Law.
  • There is a mention of Coulomb's Law, specifically the formula F=k(q1q2)/r², as a starting point for solving the problem.
  • Participants express uncertainty about how to apply the formula and the implications of changing the distance on the force.
  • One participant attempts to manipulate the formula but appears confused about the correct application of the variables and the original question.

Areas of Agreement / Disagreement

Participants generally agree on the relevance of Coulomb's Law to the problem but exhibit uncertainty regarding the application of the formula and the interpretation of the problem's conditions. The discussion remains unresolved as participants seek clarification and guidance.

Contextual Notes

Participants have not fully established the correct approach to manipulating the formula, and there are indications of confusion regarding the variables involved and the specific conditions of the problem.

haengbon
Messages
38
Reaction score
0

Homework Statement



Two charged particles exert an electrostatic force of 10 N. What will be the magnitude of the force if q1 is three times q2 and the distance between particles is increased to five times the original distance?


Homework Equations





The Attempt at a Solution




I don't have the slightest idea as to how to answer this. someone please help?
 
Physics news on Phys.org
haengbon said:
Two charged particles exert an electrostatic force of 10 N. What will be the magnitude of the force if q1 is three times q2 and the distance between particles is increased to five times the original distance?

Hi haengbon! :wink:

Call the original distance x.

What equations do you know that might help? :smile:
 
tiny-tim said:
Hi haengbon! :wink:

Call the original distance x.

What equations do you know that might help? :smile:

thank you for replying! :smile:

I honestly don't know any equations for it :(
 
Have you heard of Coulomb's Law? Good place to start.
 
is it the F=k(q1q2)/r2?

so... k=9x10^9 and F=10...

that's all I understand from it :(
 
Hi haengbon! :smile:

(try using the X2 and X2 tags just above the Reply box :wink:)
haengbon said:
is it the F=k(q1q2)/r2?

so... k=9x10^9 and F=10...

Yes, that's the force of one charged particle on the other at distance r.

So how much will the magnitude, F, of the force be if the distance between the same particles is increased to five times r? :smile:
 
tiny-tim said:
Hi haengbon! :smile:

Yes, that's the force of one charged particle on the other at distance r.

So how much will the magnitude, F, of the force be if the distance between the same particles is increased to five times r? :smile:

so...it'll be

F= K(Q1Q2)/r
10= 9x109(Q1Q2)/ r(5) ?

I really appreciate your guidance through the whole problem ^^
 
Hi haengbon! :smile:

(just got up :zzz: …)
haengbon said:
so...it'll be

F= K(Q1Q2)/r
10= 9x109(Q1Q2)/ r(5) ?

I really appreciate your guidance through the whole problem ^^

i] what happened to r2 ? :redface:

ii] you're not reading the question carefully …

what is 10?
 

Similar threads

Induction confusion for induced charge inside a metal conductor
  • · Replies 23 ·
Replies
23
Views
1K
Find the magnitude of the electric force from 3 charges at vertices of a cube
  • · Replies 17 ·
Replies
17
Views
3K
Electrostatic Force: +3.2 C & -1.6 C Magnitude of Force
  • · Replies 2 ·
Replies
2
Views
2K
What does it mean by 'number of particles in a substance'?
  • · Replies 11 ·
Replies
11
Views
4K
How to determine the magnitude of the electric force
  • · Replies 12 ·
Replies
12
Views
9K
Graduate Voltage derivation for charged particles
  • · Replies 23 ·
Replies
23
Views
5K
Calculate electric force using Coulomb's law (vector components are the struggle)
  • · Replies 3 ·
Replies
3
Views
2K
What is the magnitude of the field at point R?
  • · Replies 5 ·
Replies
5
Views
2K
How to find distance between 2 charges, with no force given?
  • · Replies 2 ·
Replies
2
Views
3K
Electromagnetic force on particles forming a square
  • · Replies 5 ·
Replies
5
Views
2K