![Describe an experiment to determine Young’s Modulus of a steel wire. Describe an experiment to determine Young’s Modulus of a steel wire.](https://digitalteachers.co.ug/wp-content/uploads/2021/04/Bbosa3.jpg)
Describe an experiment to determine Young’s Modulus of a steel wire.
Experiment to determine Young’s Modulus for a metal wire
- Two thin, long wires of the same material and length P and Q are suspended from a rigid support.
- P carries a scale M in mm and it’s straightened by attaching a weight at its end.
- Q carries a Vernier scale which is alongside scale M
- Various loads are added to the test wire and corresponding extensions caused are read off from a Vernier scale.
- The diameter (2r) of the wire is obtained by a micrometre screw gauge, and the cross section area of the wire A = 4πr2
- A graph of mass (m) of the load against extension e is plotted
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CATEGORIES A-level physics
TAGS Dr. Bbosa Science
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