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Ammeters and springs (1 Viewer)

darkk_blu

Member
Joined
Jan 31, 2018
Messages
68
Gender
Male
HSC
2018
I have a school project where we have to build an ammeter, I plan to build the moving coil ones but I have no idea what type of spring provides the restoring/controlling force for the turning coil. Do know what kind of spring I'm supposed to use and where to buy it?
 

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