Thermal Expansion - Find Current for Iron, Aluminium & Copper Coils

AI Thread Summary
To determine the current needed for expanding different types of coils such as iron, aluminum, and copper, it's essential to look up the resistivity values of these metals. A non-ideal inductor can be modeled as an ideal inductor in series with a resistor that reflects the wire's resistance. This modeling approach helps in calculating the necessary current for coil expansion. Websites that provide resistivity data for various metals can be useful resources. Understanding these principles is crucial for effective coil design.
dazza24383
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Hi guys,

I need to find out what current i need to expand different type of coils. eg iron, aluminium, copper, etc. Is there a website that can give me this information? I tried searching but no luck.

Thx
Dazza
 
Science news on Phys.org
Try searching for the resistivity of those metals. A non ideal inductor (coil) can be modeled as an ideal inductor (zero resistance) in series with a resistor equal in value to the resistance of the length of wire.
 

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