How Does a Proton's Velocity Change in a Uniform Electric Field?

  • Thread starter Thread starter Haniszmi
  • Start date Start date
  • Tags Tags
    Electric
Click For Summary
SUMMARY

The discussion centers on calculating the final velocity of a proton moving in a uniform electric field of 10 N/C. The proton, initially traveling at 10^5 m/s, covers a distance of 4 cm (0.04 m) while in the field. The work done on the proton can be calculated using the equation W = q * ΔV, where ΔV is derived from the electric field strength. The final velocity can be determined by applying the work-energy principle, which states that the work done on the proton increases its kinetic energy.

PREREQUISITES
  • Understanding of electric fields and their properties
  • Familiarity with the concept of work done by electric forces
  • Knowledge of kinetic energy and its relationship to work
  • Basic proficiency in physics equations involving force and acceleration
NEXT STEPS
  • Study the relationship between electric fields and force on charged particles
  • Learn how to apply the work-energy theorem in electric fields
  • Explore the concept of potential difference in electric fields
  • Investigate the motion of charged particles in uniform electric fields
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in understanding the dynamics of charged particles in electric fields.

Haniszmi
Messages
13
Reaction score
0

Homework Statement


1. A uniform electric field is directed towards the east with a magnitude of 10 N/C. A proton, moving with a speed of 10^5 m /s, enters the field traveling parallel to it. The proton covers a distance of 4 cm while in the field. Find the proton’s final velocity as it leaves the field.


Homework Equations


F=(k)(q1)(q2)/r, F=mv^2/r, Ac=v^2/r


The Attempt at a Solution


I don't understand how to attempt this problem. Confused about the 4cm, not sure if where to use it. How does the proton's velocity change when it enters an electric field?
 
Physics news on Phys.org
1 Newton / coulomb = 1 volts / meter

And W = q*ΔV

If you know how far it went in the field (.04 m) * 10 v/m that's how much work was exerted on increasing its kinetic energy isn't it since it was || to its direction of motion?
 

Similar threads

Electric Field Force Exerted Vertically
  • · Replies 9 ·
Replies
9
Views
8K
The time for a proton to reach a certain velocity
  • · Replies 4 ·
Replies
4
Views
2K
An electron & a proton are each placed in an electric field
  • · Replies 1 ·
Replies
1
Views
3K
Dependence of an electric field on distance
  • · Replies 12 ·
Replies
12
Views
3K
Electric Field Homework: Rank Protons by Acceleration
  • · Replies 33 ·
2
Replies
33
Views
8K
Calculating accelerations in Induced Electric Fields
  • · Replies 3 ·
Replies
3
Views
2K
Motion of charge in electric and magnetic fields
  • · Replies 8 ·
Replies
8
Views
2K
Find the position of a proton in an E and B field
  • · Replies 7 ·
Replies
7
Views
3K
Particle traveling towards a plate with an Electric Field
  • · Replies 1 ·
Replies
1
Views
2K
Understanding Fundamentals of Electronics: Solving an Electric Charge Problem
  • · Replies 11 ·
Replies
11
Views
2K