Magnetism from electric currents
What is the right hand rule?  Use a drawing to explain it.

 
 
 
 
 

What is a solenoid?  Use a drawing to describe the magnetic field it produces.
 
 
 
 
 

What is an electromagnet?
 
 

Give three examples of technologies that use electromagnets.
 
 
 
 
 
 

What is a domain?  Use a drawing to illustrate this concept.
 
 
 
 

What does a galvanometer do?
 
 
 

Draw a galvanometer and label its parts.
 
 
 

What is an electric motor?
 
 
 

Draw an electric motor and label its parts.
 
 

What does each of the following do in an electric motor:
brushes

commutator
 

Draw a speaker and label its parts.
 
 
 

Describe how a speaker works.
 
 
 


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