What is the force between moving charges?

  • Thread starter Thread starter j88k
  • Start date Start date
  • Tags Tags
    Charges Force
AI Thread Summary
The discussion revolves around understanding the forces between moving charges, particularly in parts B and C of a homework problem. The user is struggling with the calculations involving the electric and magnetic forces, specifically questioning the distance squared in the equations and the relationship between the two forces. There is a mention of the electric force being greater than the magnetic force, and the user suspects that the angle at which the second charge moves relative to the magnetic field is affecting their calculations. The user is seeking clarification on these points as they are running out of attempts to solve the problem. Overall, the thread highlights the complexities of calculating forces in electromagnetic interactions.
j88k
Messages
27
Reaction score
0

Homework Statement



http://img207.imageshack.us/img207/4245/picture2jwi.png

Homework Equations



see picture

The Attempt at a Solution



I don't know what is going wrong with part B and I'm running out of attempts! Please help me with that and part C as well.

Thanks
 
Last edited by a moderator:
Physics news on Phys.org
j88k said:

Homework Statement



Homework Equations



The Attempt at a Solution



I don't know what is going wrong with part B and I'm running out of attempts! Please help me with that and part C as well.

Thanks

F = q2v X B1 = q2v *μo*q1v/(4π*2d2)

Your distance squared is 2d2 isn't it?
 
For part C) consider that

εoμo = 1/c2
 
didn't get it.. one more attempt left..

http://img17.imageshack.us/img17/3769/picture2zjr.png




and the answer for part C would be: The magnitude of the electric force is greater than the magnitude of the magnetic force. ?
 
Last edited by a moderator:
anyone?
 
I think the problem is that the second charge is moving at an angle to the field generated by the other charge.

I think the F then is a factor of √2/2 off. (The value of sinθ that v is relative to the B field.)
 
Thread 'Voltmeter readings for this circuit with switches'

Thread 'Voltmeter readings for this circuit with switches'

TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
View full post »
Thread 'Struggling to make relation between elastic force and height'

Thread 'Struggling to make relation between elastic force and height'

Hello guys this is what I tried so far. I used the UTS to calculate the force it needs when the rope tears. My idea was to make a relationship/ function that would give me the force depending on height. Yeah i couldnt find a way to solve it. I also thought about how I could use hooks law (how it was given to me in my script) with the thought of instead of having two part of a rope id have one singular rope from the middle to the top where I could find the difference in height. But the...
View full post »

Similar threads

Moving charge deflected by a loop of wire
Replies
1
Views
737
How can voltage between unlike charges decrease with proximity?
Replies
4
Views
817
What is the net force on the -1nC charge in this Coulomb's Law problem?
Replies
1
Views
2K
Mechanisms Involved When Charging a Battery
Replies
10
Views
1K
E&M: Gauss' Law Surface Charge Density
Replies
4
Views
1K
Calc Tension of 2 Angles: 590-N Ball Suspended from Cords
Replies
5
Views
10K
Charge conservation for 3 parallel charged plates
Replies
19
Views
1K
How to find distance between 2 charges, with no force given?
Replies
2
Views
2K
Net force acting on a charged particle ##+Q##
Replies
9
Views
3K
Point charge with very thin metal sheet along a spherical surface
Replies
21
Views
2K

Hot Threads

Recent Insights

Back
Top