Question

Define in detail good conductor and bad conductor of electricity

Answer 1

Good Conductor :These are the materials which offers very low resistance to the flow (or in path of) of electric Current.

In other words these materials have very low resistivity.

E.g of good Conductor :silver, copper, aluminum, gold etc.

Bad Conductor :These are the materials which offers very high resistance to the flow(or in path) of electric Current.

In other words these materials have very high resistivity.

E.g. :paper, Mica, glass, teflon.

In other words

An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage.
Pure elemental silver is the best electrical conductor encountered in everyday life. Copper, steel, gold, aluminum, and brass are also good conductors.

A material that conducts fairly well, but not very well, is known as a bad conductor(resistor). The most common example is a combination of carbon and clay, mixed together in a specific ratio to produce a constant and predictable opposition to electric current.