Physics 201- Introduction to Electricity & Magnetism
November 11- Biot- Savart & Ampere's Laws

 

 

 

 
 

 

  Consider the following wire.  What is the approximate magnitude of the magnetic fields at points B and C in the diagram compared to that at point A?













Consider two long parallel wires.  If the currents in the two wires are going the same direction, what will the wires do?  Will they be attracted, repelled or do nothing?
 
 
 
 
 
 
 
 
 
 
 

Consider a simple circuit compsoed of a battery (or power supply), a light bulb and two pieces of wire, does this produce a magnetic field?  How can you make the circuit so there is no magnetic field? 
 
 

 

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