Deflection due to Magnetic Field

In summary, the deflection of the electron beam in a tube TV set is achieved through magnetic forces by accelerating each electron through a potential difference of 30000V. The charge to mass ratio of the electron is 175824175824.176C/kg. To determine the distance from the center of the screen where the beam strikes, we can use the equations R = mv/qB and R = (m/eB)*√(2eVacc/m). However, the question seems to be missing some information, such as the required magnetic field to produce a deflection of 0.03m at a magnetic field region length of 0.065m.
  • #1
Alouette
35
0

Homework Statement


The deflection of the electron beam in an old-fashioned tube TV set is accomplished by magnetic forces. Each electron is accelerated through a potential difference of V=30000V. The charge to mass ratio of the electron is 175824175824.176C/kg.

If there is a x2=0.1m gap between the end of the magnetic field region and the end of the tube, how far from the center of the screen does the beam strike?

ynet = y1 + y2 =


Homework Equations


R = mv/qB

R = (m/eB)*√(2eVacc/m)


The Attempt at a Solution


I'm not even sure where to begin. The first thing I'm confused by is what do they mean by end of magnetic field region?
 
Physics news on Phys.org
  • #2
Im having the same problem as above with the same question.
it just that the question above seem to be missing a line of information which is
What magnetic field is required to produce a deflection of y1=0.03m if the magnetic field region is x1=0.065m long?
 

1. What is deflection due to magnetic field?

Deflection due to magnetic field is the phenomenon where a charged particle, such as an electron, is pushed off its original path by the presence of a magnetic field.

2. How does deflection due to magnetic field occur?

Deflection due to magnetic field occurs because when a charged particle moves through a magnetic field, it experiences a force perpendicular to both its own velocity and the magnetic field. This force causes the particle to change its direction of motion and become deflected.

3. What factors affect the degree of deflection?

The degree of deflection depends on the strength of the magnetic field, the charge of the particle, and the velocity of the particle. A stronger magnetic field, higher charge, and higher velocity will result in a greater degree of deflection.

4. What is the use of deflection due to magnetic field in scientific research?

Deflection due to magnetic field is used in scientific research to study the properties of charged particles, such as their charge-to-mass ratio and energy. It is also used in various technologies, such as particle accelerators and mass spectrometers.

5. How is deflection due to magnetic field different from deflection due to electric field?

Deflection due to magnetic field and deflection due to electric field are both caused by the presence of a force acting on a charged particle. However, the direction of the deflection is different. In a magnetic field, the deflection is perpendicular to the direction of motion, while in an electric field, the deflection is parallel to the direction of motion.

Similar threads

Angle of deviation from a magnetic field
    • Introductory Physics Homework Help
Replies
5
Views
1K
The right hand rule in a magnetic field
    • Introductory Physics Homework Help
Replies
2
Views
1K
Ion moving through electric potential difference and magnetic field
    • Introductory Physics Homework Help
Replies
6
Views
140
Expression of radius and helical motion in a magnetic field
    • Introductory Physics Homework Help
Replies
17
Views
2K
Electric and Magnetic field acting on an electron
    • Introductory Physics Homework Help
Replies
25
Views
4K
A Charged Particle moving in Uniform Magnetic Field
    • Introductory Physics Homework Help
Replies
2
Views
1K
Motion of charge in electric and magnetic fields
    • Introductory Physics Homework Help
Replies
8
Views
1K
Charged particle motion in a magnetic feild
    • Introductory Physics Homework Help
Replies
8
Views
1K
Solving for Radius in Magnetic Field: q of Sr+?
    • Introductory Physics Homework Help
Replies
2
Views
2K
Determining the magnetic force on an electron
    • Introductory Physics Homework Help
Replies
3
Views
1K

Hot Threads

Recent Insights

Back
Top