Final answer:
The property of a conduit that causes it to unbend slightly after a bend is completed is referred to as elastic memory, which is a result of the material's ability to return to its original shape following deformation.
Step-by-step explanation:
The property of conduit that causes it to unbend slightly after a bend is completed is known as elastic memory. Elasticity in materials refers to their ability to return to their original shape after the forces causing deformation are removed. In this context, when a conduit is bent, it undergoes an elastic deformation, and its elastic memory tends to restore it to its original shape, to a certain extent, after the bending force is removed.
In contrast, plasticity is a property where materials undergo a permanent shape change and do not return to their initial state after the load is removed. Ductility is also a related term but it specifically refers to a material's ability to be stretched into a wire or deformed without breaking, which is different from elastic memory.