# Download Force on a Charged Particle

Survey
Was this document useful for you?
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Renormalization wikipedia, lookup

Standard Model wikipedia, lookup

ATLAS experiment wikipedia, lookup

History of quantum field theory wikipedia, lookup

Lepton wikipedia, lookup

Mathematical formulation of the Standard Model wikipedia, lookup

Relativistic quantum mechanics wikipedia, lookup

Elementary particle wikipedia, lookup

Theoretical and experimental justification for the Schrödinger equation wikipedia, lookup

Magnetic monopole wikipedia, lookup

Compact Muon Solenoid wikipedia, lookup

Aharonov–Bohm effect wikipedia, lookup

Electron scattering wikipedia, lookup

Transcript
```Bellwork
A wire carrying a current of 3.0 A is in a uniform
magnetic field. The wire makes an angle of 15°
with the field. The wire is 35 cm in length and the
force on the wire is 0.80 N. What is the strength of
the magnetic field?
Force on a Charged Particle
• Charged particles are not confined to a wire.
• Cathode-ray tube in monitors and TVs use magnetic
fields to deflect electrons to form pictures on the
screen.
• The screen in coated with phosphor to glow when an
electron hits it.
• The force produced by a magnetic field on a charged
particle depends on it’s velocity, it’s charge (+/-),
and on the strength of the field.
• Direction of force is perpendicular to both the
velocity of the particle and the B-field.
• F= Bqv
• B- magnetic field (T)
• q- charge of particle (C) (no negatives)
• v- velocity of particle (m/s)
To determine directions:
•
•
•
•
Use the 2nd RHR:
Thumb point in the direction of the velocity
Fingers faces the direction of the field
Your palm points to the direction of the force on a
POSITIVE particle. It will be opposite for a
NEGATIVE particle.
Practice
• A proton travels at 3.0 x 106 m/s to the west through
a uniform magnetic field of 0.04 T toward the north.
What is the force on the proton?
• An electron travels at 2.7 x 105 m/s to the west
through a uniform magnetic field of 0.07 T toward
the north. What is the force on the electron?
Review
•
•
•
•
•
•
1st RHR
Magnetic Field Lines
F = BIL
2nd RHR
F = Bqv
3rd RHR
```