Creating magnetic fields
Creating Magnetic Fields
Magnetic Fields
Magnetic Constant
4p ?
Currents and Magnetic Fields
General Case
Field at the Center of a Loop
Example
Field on axis of circular loop
Field off-axis
Magnetic Field due to a current in a straight wire
Shortcut RHR rule #1
Shortcut RHR rule #2
The Solenoid
Gauss’ Law for Magnetism
Another Law
Ampere’s Law
Back to the solenoid
Inside the Solenoid
Outside the solenoid
Value of Field Inside
B inside solenoid
Solenoid
Force between Currents
Forces between wires
Forces between currents
Email: jholmes@cbu.edu
Home Page: http://www.cbu.edu/~jholmes/P251/intro.html