Question
Conductors and Insulators
| Resistance | Resistivity |
| (i) The hindrance to the flow of electrons is called resistance. | (i) Resistivity is the specific property of the material of a conductor. |
| (ii) The S.I. unit of resistance is ohm (Q). | (ii) The S.I. unit of resistivity is ohm-metre (Q – m). |
| (iii) It depends on temperature, area of cross-section, length of conductor and material of the conductor. | (iii) It depends on material of the conductor. |
| (iv) Resistance can be changed as it depends of external factor as well. | (iv) Resistivity cannot be changed as it depends of internal factors. |
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