Physics 201- Introduction to Electricity & Magnetism
November 6- Magnetic Torques & Applications

 

 

 

 
 

 

  Magnetic Dipoles

Note the direction of the dipole moment (perpendicular to the loop, following the right hand rule.)
 
 
 
 
 
 
 
 

A small circular coil of 20 turns of wire lies in a uniform magnetic filed of 0.5T such that the normal to the plane of the coil makes an angle of 60o with the direction of the magnetic field.  The radius of the coil is 4cm and it carries a current of 3A.  What is the magnitude of the torque exerted on the coil?
 
 
 
 

 

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Jeff Phillips
phillips@lmu.edu
Loyola Marymount University
Fall 2002