Compound Wires Apparatus.
Compound Wires Apparatus Features
Low cost effective teaching
Self-contained
Wall-mounted
Simple determination of Young's modulus
Verification of Hooke's Law
Range of specimen material and thickness available
Investigation of stresses in compound
suspension
3 year warranty
Range of Experiments
To determine Young's modulus of elasticity for the specimen wire
To verify Hooke's Law
To evaluate the equivalent modulus of elasticity for the combined wire suspension
To determine the load in the wire under conditions of equal strain in each wire.
To compare experimental and theoretical results
Description
Loaded
wires form a simple experiment which produces excellent and easy to
understand results. A single wire can be used to determine Young's
Modulus of Elasticity for the material, and to confirm Hooke's Law. With
two wires, the experiment can be widened to investigate the effective
characteristics of two different materials subjected to a common strain.
Two
parallel sets of brackets are secured to a wall minium 2m apart in a
vertical line; a top bracket from which to hang a specimen wire, and a
slider bracket used to measure the extension of the wire. The slider
includes a vernier for accurate measurement. For safety, the lower
bracket should be reasonably close to the ground. The lower ends of each
slide are connected by a link. A load hanger can be moved along the
link until strains are equalised in each wire. The wires may be of
different materials, but must be the same length.
This equipment
is part of a range designed to both demonstrate and experimentally
confirm basic engineering principles. Great care has been given to each
item so as to provide wide experimental scope without unduly
complicating or compromising the design. Each piece of apparatus is
self-contained and compact. Setting up time is minimal, and all
measurements are made with the simplest possible instrumentation, so
that the student involvement is purely with the engineering principles
being taught. A complete instruction manual is provided describing the
apparatus, its application, experimental procedure and typical test
results.
