Charged particle within an electric field

AI Thread Summary
The discussion revolves around the confusion regarding the behavior of a charged particle in an electric field, particularly when velocity is constant. The participant initially considered using the equation a=qE/m but realized it was not applicable due to the constant velocity. There is uncertainty about how to derive the electric field from the electric potential with the given information. The inclusion of the magnetic field's magnitude raises questions, as it suggests that the magnetic force cancels out both the electric and gravitational forces. The participant seeks clarification on the magnetic force acting on the ion.
howsockgothap
Messages
59
Reaction score
0

Homework Statement



phys2.png


Homework Equations



DON'T KNOW


The Attempt at a Solution



I can honestly say I've never been this confused by a question. At first my mind automatically went to a=qE/m since I have both charge and mass, but it became apparent that the equation was irrelevant because the velocity is constant. I thought it might be possible that I'm supposed to obtain the electric field by taking the integral of the electric potential, but I don't understand how I can get that using the information I have, and I have no sweet clue why the magnitude of the magnetic field is included.
 
Physics news on Phys.org
It means the magnetic force exactly cancels the electric force (plus the gravitational force). What's the magnetic force on the ion? :wink:
 

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 net velocity of charged particle in electric field (symbols only)
Replies
14
Views
3K
Direction of electric field vector on the surface of charged conductor
Replies
9
Views
1K
No Electric Charges if No Electric Field in Region
Replies
22
Views
2K
The electric potential inside a conducting sphere with charge Q
Replies
11
Views
1K
Capacitors, equipotentials, and electric fields
Replies
5
Views
900
Discontinuity in an Electric line of force
Replies
12
Views
2K
Finding the position where the electric field is zero
Replies
2
Views
1K
Find the electric field of a long line charge at a radial distance
Replies
1
Views
2K
Can a dipole be modeled as a point charge?
Replies
10
Views
466
Why is electric field at the center of a charged disk not zero?
Replies
4
Views
3K

Hot Threads

Recent Insights

Back
Top