lect5412

# lect5412 - Source of Magnetism Electric current produces a...

This preview shows pages 1–14. Sign up to view the full content.

Source of Magnetism

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Electric current produces a magnetic field!!!
Direction of Magnetic Field Produced by a Current-Carrying Wire: Right-Hand Rule

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Grasp the wire with your right hand so that your thumb points in the direction of the conventional (positive) current; then your fingers will encircle the wire in the direction of the magnetic field.
Force on an Electric Current in a Magnetic Field.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Important: the direction of the force is always perpendicular to the direction of the current and also perpendicular to the direction of the magnetic field.
Another Right-Hand Rule (for the Force)

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Force on Electric Current in a Magnetic Field Maximum F=IlB
Units of Magnetic Field 1 Tesla (T) = 1 N/A m 1 Gauss (G) = 10 -4 T

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Force on an Electric Charge Moving in a Magnetic Field
Maximum F=qvB

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Right-Hand Rule Again
right-hand rule defines direction of a force acting on a positive charge. For negatively charged particles the force is in exactly the opposite direction. Don’t forget this when you are

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 05/05/2009 for the course PHYSICS 1002 taught by Professor Borovitskaya,elena during the Spring '09 term at Temple.

### Page1 / 26

lect5412 - Source of Magnetism Electric current produces a...

This preview shows document pages 1 - 14. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online