Angle of Electron Velocity Change: 8 Degrees

  • Thread starter Thread starter Resmo112
  • Start date Start date
  • Tags Tags
    Angle Electron
AI Thread Summary
The problem involves an electron traveling through deflection plates with an electric field of 4000 N/C. To find the angle of deflection, the acceleration of the electron must first be calculated using the electric field. The time the electron spends in the electric field is determined by its speed and the length of the field region. After calculating the change in velocity, the angle can be found using inverse tangent functions. The final result indicates that the angle of deflection is 8 degrees.
Resmo112
Messages
45
Reaction score
0

Homework Statement


An electron is fired through a pair of deflection plates, which produce a 2.00 cm long region with an electric field of 4000 N/C perpendicular to the electron's initial velocity. If the initial speed of the electron is 1.00 × 107 m/s, what angle will its new velocity make with the direction of the original velocity?*



Homework Equations





The Attempt at a Solution



I know it's 8 degrees (multiple choice question) I just don't even know where to start with this. I imagine I'm going to have to use an inverse tan eventually.
 
Physics news on Phys.org
Start by expressing the acceleration of the electron due to the electric field. Next, determine how long the electron would experience this acceleration.
 
Thread 'Variable mass system : water sprayed into a moving container'

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}...
View full post »

Similar threads

Finding the angle of an electron striking a plate
Replies
3
Views
2K
Angle of deflection of electron
Replies
2
Views
2K
How to calculate vertical electron deflection between two charged plates?
Replies
1
Views
3K
Velocity of an Electron between Two Plate
Replies
3
Views
7K
Compton effect: Scattering angle of electron
Replies
1
Views
2K
Relativity: Initial velocity and e/m of Thomson's experiment
Replies
1
Views
1K
An electron is fired at 4.0x10^6 m/s horizontally....
Replies
7
Views
3K
Moving Electrons in a Uniform Magnetic Field
Replies
4
Views
1K
Mastering Physics: Electron turning 90 degrees in capacitor
Replies
3
Views
6K
Compton effect problem - Find angle and energy of scattered electron
Replies
16
Views
10K

Hot Threads

Recent Insights

Back
Top