1.
The copper wire used has a diameter of 0.24 mm. What is its cross-sectional area in mm2 ?
What is this in m2?
2.
A load of 10 N is applied to the wire. What tensile stress does this cause? Remember to
include the units in your answer.
3. The load caused the wire to stretch by 3.5 mm from its original length of 1.6 m. What is the
tensile strain?
4.
Calculate the Young modulus of copper.