Magmetic+field+and+forces

toc =Learning Outcomes:=

=Oscillating charge and magnetic field:= Visit the flash animation [] =Various rules for magnetic fields:=  **__Magnetism Hand Rules__** OR Corkscrew Rule || Or arrows on letters || || || = =
 * **Used to find:** || **Rule** ||
 * Field for a straight wire || Right hand grip rule with thumb = current
 * Field for a solenoid || RH grip rule with thumb = field
 * Force(motion) on a wire or coil || Fleming’s Left Hand Motor Rule
 * Current in a wire or dynamo || Fleming’s Right Hand Dynamo Rule

=Applet for Lorentz force:= Visit the link [] @http://cwx.prenhall.com/bookbind/pubbooks/walker2/chapter22/custom6/deluxe-content.html []

=Lines of forces due to current carrying conductors:=

FOllow the pages in the link @http://schools.matter.org.uk/content/MagneticFields/fields_1.html

|| || ||
 * [[image:http://schools.matter.org.uk/content/MagneticFields/_derived/fields_1.html_cmp_matter_1010_bnr.gif width="610" height="36" align="center" caption="Introduction"]] ||
 * [[image:http://schools.matter.org.uk/_derived/up_cmp_matter_1010_up.gif width="100" height="20" align="center" caption="Up" link="http://schools.matter.org.uk/content/MagneticFields/Default.htm"]]



A magnetic field is a region of space in which a magnetic material experiences a force. A magnetic field can be represented by field lines that show the shape of the field. Lines close together represent a strong field and lines widely spaced represent a weak field. Field lines are always complete loops. We draw them in the direction from a north to a south pole. [The direction of the field is the direction of the force that would act on an isolated north pole placed there.]
 * ||  || All magnetic fields are a consequence of electric currents.

Magnetic materials include iron, cobalt and nickel. ||


 * [[image:http://schools.matter.org.uk/_themes/matter_1/mathsepa.gif width="300" height="10" align="center"]]

|| //Materials Teaching Educational Resources//

© 1999 [|MATTER] Project, [|The University of Liverpool] || Supported by the [|European Social Fund] under the Objective One programme for Merseyside ||