Question

distinguish between conductor and insulator

Answer 1

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Basis For ComparisonConductorInsulatorDefinitionMaterial which permits the electric current or heat to pass through it.Restrict the electric current or heat to pass through it.Electric FieldExist on the surface but remain zero inside the conductor.Do not exist on insulator.Magnetic FieldStore energyDo not store energyPotentialRemain same at all the point on conductor.Remain zero.Thermal ConductivityHighLowCovalent bondWeakStrongConductivityVery highLowResistanceLowHighElectronsFreely moveDo not move freelyResistivityVary from high to lowHighTemperature coefficientPositive temperature coefficient of resistanceNegative temperature coefficient of resistanceConduction bandFull of electronsRemain emptyValence BandRemains EmptyFull of electronsForbidden gapNo forbidden gapLarge forbidden gapExamplesIrons, aluminum, silver, copper, etc.Rubber, wood, Paper, etc.ApplicationFor making electrical wires and conductorAs a insulation in electrical cables or conductor, for supporting electrical equipment etc.

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Answer 2

A conductor is a material that allows easy easy flow electricity through it, forexample Aluminium & copper while

An insulator is a material which does not allow easy flow of electricity through it for example dry wood and air.

Heat Energy Context

A conductor is a material that allows easy transfer of heat energy through it for example iron, copper, aluminum & steel while

An insulator is a material that does not allow easy flow of heat energy through it for example wood & plastic.