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The main uses of resistance wire include current limiting, voltage division, heating, and heating functions in specific applications. In electronic circuits, resistance wire limits current through its own resistance value to prevent excessive current in the circuit from damaging other electronic components. In addition, resistance wire can share part of the power supply voltage in a series circuit, play a voltage division role, and protect sensitive components in Lub Circuit Court . Thaum tam sim no hla dhau lub zog hluav taws xob, feem ntau ua rau cov khoom siv hluav taws xob tsis kam siv hauv cov cua sov {}}