Electrical Properties of Metals: Conductivity, Temperature Coefficient of Resistance, Dielectric Strength, Resistivity, Thermoelectricity

 Electrical Properties of Metals

The various electrical properties of materials are conductivity, temperature coefficient of resistance, dielectric strength, resistivity, and thermoelectricity. These properties are defined as under.


1. Conductivity

Conductivity is defined as the ability of the material to pass electric current through it easily i.e. the material which is conductive will provide an easy path for the flow of electricity through it.

2. Temperature Coefficient of Resistance

It is generally termed as to specify the variation of resistivity with temperature.

3. Dielectric Strength

It means insulating capacity of material at high voltage. A material having high dielectric strength can withstand for longer time for high voltage across it before it conducts the current through it.

4. Resistivity

It is the property of a material by which it resists the flow of electricity through it.

5. Thermoelectricity

If two dissimilar metals are joined and then this junction is heated, a small voltage (in the milli-volt range) is produced, and this is known as thermoelectric effect. It is the base of the thermocouple. Thermo -couples are prepared using the properties of metals.


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