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New Jersey Institute of Technology Prof. Nengyi HuangPhys 103A – Section 002Physics Lab Lab A: Young’s Modulus – Elasticity in LengthFebruary 6th, 2017Group Members: I.Introduction
When force is applied to a wire of a certain length L and this wire stretches and the∆ Lis so relatively small that the cross sectional area remains constant. In these case Stressand Strain come in. Stress being the force per unit area and strain being the changed in thelength of the wire with respect to the original length of the wire. In this experiment it was ourobjective to determine Young’s Modulus of elasticity of a thin wire by stretching the wire.II.Experimental ProcedureTo begin this lab we were to first place a bubble level on the bottom platform of theapparatus to ensure that the legs were leveled and the micrometer screw was adjusted to makesure the bridge of the apparatus was leveled after placing the 1kg weight pan on the wire. Theinitial micrometer reading was recorded and we proceeded to measure the length of the wire(L) and the diameter of the wire (D). Once all of these values were measured, 7kg were addedto the weight pan, 1 kg at a time. After each weight was added the micrometer screw was