Adblock Detected Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by disabling your ad blocker. We depends on ad revenue to keep creating quality content for you to learn and enjoy for free. A conductor is a material that allows the flow of charge when applied with a voltage.
An insulator is a material that does not allow the flow of current. Temperature Dependence. The resistance of a conductor increases with an increase in temperature. The resistance of a semiconductor decrease with increases in temperature. Thus it acts as an insulator at absolute zero. Insulator has very high resistance but it still decreases with temperature.
The conduction in conductors is due to the free electrons in metal bonding. There are no free electrons or holes thus, there is no conduction. Semiconductors have a wide range of useful characteristics. The 0-kelvin behaviour of the semiconductors will convert them into insulators.
For instance, passing current in a single direction, showing changeable resistance, and also be light or heat sensitivity. Semiconductors use a lesser number of electrons for conduction as compared to conductors. The single direction flow of current happens because of the presence of the free electrons and holes.
Semiconductors are used in the manufacture and production of several electronic devices like transistors, integrated circuits, and diodes. They are used in power devices, optical sensors, light emitters, and also for the production of solar cells with the help of p-type and n-type semiconductors.
They have great voltage and electric current handling capabilities. These devices are cost-effective and pocket-friendly, reliable, easy to use, and also is power efficient.
Conductors which can be found in daily situations are like a thermometer that uses mercury to measure the temperature of the body. Then a cooking pan that is made of Iron uses its conductivity characteristics to transfer the heat from the flame to the food.
A semiconductor will not carry electrical current easily like a normal conductor. Some of the materials use intrinsic semiconductors, and the semiconducting properties will happen in these materials. But, most of the materials used in modern electronics are extrinsic. These can be turned into semiconductors by doping them with tiny amounts of unknown atoms. But the number of atoms required to add for doping is very small. The conductors which are mostly used in modern electronics are metals which include steel, aluminum, and copper.
Thus, they can transmit electric current from one place to another place without dissolving a lot of currents. As a result, these are helpful while connecting wires for transmitting current from one place to another place. They assist in ensuring that most of the electrical current achieves its target as an alternative of heat up the connecting wires in between!
The elements which allow the flow of electric current through it by the application of voltage. The elements which do not allow any flow of electric charge. The elements whose conductivity lies between insulators and conductors. Electric Conductivity. Good conductor. Bad conductor. At 0K works , it works as an insulator while by applying thermal agitation or by adding impurity becomes good conductor.
Energy Band. Conduction band and valence band overlap each other. Conduction band and valence band are separated by 6eV. Conduction band and valence band separated by 1eV. Temperature Coefficient. Positive temperature Coefficient of resistance. Negative Temperature Coefficient of resistance. Charge carriers. They do not contain any charge carriers. Intrinsic charge carriers are holes and electrons. Current Flow. Current flow due to electrons.
Current does not flow. Current flow due to holes and electrons. Number of Charge Carriers. Very High. Valence band and conduction Band. Valence band and conduction band is completely filled. Valence Band is completely filled and conduction band is completely empty.
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