what is Transformer?
By Normanno89
@Normanno89 (64)
Italy
January 19, 2007 9:49am CST
A transformer is made up of a core which is made of iron and two coils of insulated wire winding around at both ides of it. When a transformer is used to decrease the voltage , it is called a step down transformer, when it increased the voltage it is called a step down transformer.
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