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E & M Test

Electricity and Magnetism Test

transformer a device that increases and decreases voltage
magnetic induction process by which a material can be made into a magnet
magnetosphere the magnetic field around the earth
resistance depends on length, width, material and temperature
motor converts electrical energy into mechanical energy
Michael Faraday discovered that a magnetic field could produce an electric current
Step Up Transformers send high-voltage electricity over long distances - found at power companies
Step Down Transformers lower the high-voltage carried by power lines, so that safe levels of voltage are brought to our homes - found in our homes
magnetic domains must be aligned from North to South to create a temporary magnet
wet cell and dry cell batteries produce an direct current
Metals that are affected by magnetism steel, iron, nickel and cobalt
Ways to strengthen an electromagnetic 1. increase voltage 2. add more coils 3. increase current
Created by: cbeltrani