Elecopto SPRING BALANCE 200gm/2N (PLASTIC) Weighing Scale(Multicolor)
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SPRING BALANCE Dual Scale 200 gm A spring scale or spring balance or newton meter is a type of weighing scale. ... It works by Hooke's Law, which states that the force needed to extend a spring is proportional to the distance that spring is extended from its rest position. Therefore, the scale markings on the spring balance are equally spaced.
