Find the radius of each circular path

AI Thread Summary
To find the radius of the circular path of an electron moving in a magnetic field, the velocity must be broken down into components, with only the component perpendicular to the magnetic field contributing to the force. The relevant equations include F = qvB and F = mv^2/r, but without information about the magnetic field strength (B), the radius cannot be calculated. The discussion highlights the confusion surrounding the lack of data on the magnetic field, which is essential for solving the problem. The challenge lies in the need for additional information to determine the radius accurately. Overall, the problem remains unsolvable with the given parameters.
Canuck269
Messages
3
Reaction score
0

Homework Statement



Determine the path of an electron if the electron was shot at 2.5 x 10^5 m/s diagonally into a magnetic field. Find the radius of each circular path.

The angle is 30 degrees.I think that if the velocity and field are in same direction there is no force...i think. So that means you only want the component perpendicular to the field. Which is 1.25 x 10^5 m/s

I just don't understand how you can find the radius if you are given no info about the magnetic field. F= qvB and F= m v^2/r So I tried putting that together but I still have 2 variables...

The question was listed as challenger :P So I don't think it's missing info.
 
Physics news on Phys.org
you need info about the B-field or some other observations about the path of the electron.
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Find the radius of a particle's circular path
Replies
1
Views
1K
Determine the speed and tension of keys swinging in a circular path
Replies
8
Views
2K
Charged particle moving in circular path in a magnetic field
Replies
7
Views
1K
Circular Motion Questions (energies, forces, angular velocities, etc.)
Replies
2
Views
1K
Finding the radius of the satellite's circular orbit
Replies
3
Views
2K
Circular motion, coin on a rotating disk
Replies
2
Views
732
Determining the magnetic force on an electron
Replies
3
Views
2K
Radius of curvature of projectile path
Replies
4
Views
4K
Difference in Radius of Charged Particles in Magnetic Field
Replies
12
Views
7K
Horizontal circular motion problem, what am doing wrong?
Replies
26
Views
4K

Hot Threads

Recent Insights

Back
Top