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Common point : they are enameled wire wrapped, with iron or magnetic cores inside.
Different point: transformer is mainly used for voltage transformation, its basis is the law of electromagnetic induction.Inductor coils are commonly used in electronic circuits based on Lenz's law.The former general, there are two or three winding has a primary winding and secondary winding, for step-up transformer primary winding circle number less wire diameter thick, secondary winding turns more fine wire diameter, step-down transformer, by contrast, the primary number of turns more fine wire diameter, lesser number of turns less line diameter thick, widely used in all kinds of electrical appliances used as power supply.
Different point: transformer is mainly used for voltage transformation, its basis is the law of electromagnetic induction.Inductor coils are commonly used in electronic circuits based on Lenz's law.The former general, there are two or three winding has a primary winding and secondary winding, for step-up transformer primary winding circle number less wire diameter thick, secondary winding turns more fine wire diameter, step-down transformer, by contrast, the primary number of turns more fine wire diameter, lesser number of turns less line diameter thick, widely used in all kinds of electrical appliances used as power supply.
