Motion of a charged partcile in eletric fields help

AI Thread Summary
To determine the acceleration of an electron in a uniform electric field of 10^6 N/C, the relevant formula is F = Eq, where F is the force, E is the electric field strength, and q is the charge of the electron. The acceleration can then be calculated using Newton's second law, a = F/m, where m is the mass of the electron. The user initially struggled with identifying the correct formulas but realized that the electric field strength provided is sufficient to find the force without needing the distance between plates. The discussion highlights the importance of understanding the relationship between electric fields, force, and acceleration in physics. Overall, the user gained clarity on how to approach the problem effectively.
icedevilwoot
Messages
4
Reaction score
0
Hello.
I was completing some homework when I came stuck on a question. I have no idea which forumla to use. The information I've been given is : An eletron, initally at rest, accelerated by a uniform field of 10^6 NC^-1 (By the way, ^ represents to the power of).
The question is "What is the acceleration of the electron"
Now, I am not looking for answers but which forumla to use.

This would be of much help, thank you.
 
Physics news on Phys.org
Use the information given to find the force and Newton's laws will take care of the rest.
 
Yikes, sorry for wasting your time, I just realized that and how easy it was. Sorry.
 
Just another quick question ~ For the force I was going to use : F=Eq but for E it is E=/\V / D
And I haven't been given a distance between the two plates.

And to work out acceleration I was going to use a=Eq/m but I need to work out E.
 
Last edited:
They GIVE you E. accelerated by a uniform field of 10^6 NC^-1
 
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
Back
Top