What is the difference of insulators and conductors?

Answer 1

Insulators:

We define insulators as,

A nonconducting material that provides electric isolation of two parts at different voltages. To accomplish this, an insulator must meet two primary requirements: it must have an electrical resistivity and a dielectric strength sufficiently high for the given application. The secondary requirements relate to thermal and mechanical properties. Occasionally, tertiary requirements relating to dielectric loss and dielectric constant must also be observed. A complementary requirement is that the required properties not deteriorate in a given environment and desired lifetime.

Conductors:

We define conductors as,

A substance or medium that conducts heat, light, sound, or especially an electric charge.For Example,Metal wires, cables, rods, tubes, and bus-bars

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