Difference between Insulators and Superconductors
Difference between Insulators and Superconductors
are in tabular form below –
Insulators |
Superconductors |
1) Insulators are materials that do not possess electrical conductivity or current heat to pass through it.
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1) Superconductors are materials that have electrical conductivity value above the conductivity value of conductors. |
2) Electrical conductivity of insulators is very low.
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2) Superconductors have very high conductivity as compared to insulators. |
3) The band gap of the superconductor is below 2.5 ev. | 3) The band gap of superconductors is above 2.5 ev. |
4) Electrical resistance of insulators is very high, that’s why electrons cannot move freely.
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4) Superconductors have zero electrical resistance; this means that an electrical current in a superconductor continues indefinitely until a force is applied to oppose the current. |
5) The conduction band of an insulator is empty.
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5) The conduction band of a superconductors are filled with electron |
6) The insulators does not possess a large number of free electron | 6) Superconductors retains a large number of free electrons |
7) The covalent bond in insulators is very strong.
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7) The covalent bond between the atoms of the superconductors is very weak. |
8) The insulators have a negative thermal coefficient of resistance.
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8) The superconductor processes a positive thermal coefficient of resistance. |
9) In insulators, the electrons are stabilized due to atomic level forces.
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9) In the superconductors, electrons move freely from atoms whenever a potential difference is applied across it. |
10) Insulators formed by ionic bonding.
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10) superconductors formed by metallic bonding |
11) Eight valence electrons are found in outermost shells. | 11) One valence electron found in outermost shells. |
12) Insulators have large forbidden gap | 12) Superconductors do not have large forbidden gaps. |
13) Example of Insulators are : rubber, wood , paper etc. | 13) Examples of superconductors are:aluminum, niobium, magnesium, Etc. |