Question

What are two properties that make a metal a good choice to use as wire in electronics?

Answer 1

Here, it is mentioned in the question that we have two mention the two properties which make a metal a good choice to be selected as wire in electronics. The metal must be good enough so that it can easily pass the electric current through it and it can be drawn into the shape of wire.

Complete step by step answer:
The two properties which are the most important for a metal to be as being selected as a wire in electronics are as follows:
(i) Conductivity:
Electrical conductivity is the ability of a metal to conduct electric current. It is commonly represented by the Greek letter $\sigma$.
Conductivity is the reciprocal of resistivity.
When the conductivity of a metal increases then its capability to conduct electric current also increases while resistivity decreases. Again, when the conductivity of a metal decreases then its capability to conduct electric current also decreases while resistivity increases.
The SI unit of electrical conductivity is siemens per meter or $\dfrac{S}{m}$.
(ii) Ductility:
Ductility is the property by which a metal is drawn into the shape of wire. Metals that are more ductile can be easily drawn into the shape of a wire.
Ductility is the ability of a material to sustain a large permanent deformation under the action of load up to the point of fracture or the relative ability of a material to be stretched plastically at room temperature without destroying. Ductility can be measured by the amount of permanent deformation indicated by the stress-strain curve.

Note: It must be noted that electrical conductivity is the ability of a metal to conduct electric current. Ductility can be measured by the amount of permanent deformation indicated by the stress-strain curve.