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What is conductivity ? Its value depend on which factors ? Write its unit and dimension. |
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Answer» Solution :Reciprocal of resistivity is called conductivity. It is DENOTED as `sigma`. `therefore sigma = (1)/(rho)= (l)/(RA)` UNIT of conductivity is `(1)/(Omega m)` or `Omega m^(-1)`. `Omega` is reciprocal of resistance `(Omega)`. `RARR` Dimensional formula of conductivity is `M^(-1) L^(-3) T^(3)A^(2)`. `rArr` VALUE of condurtivlty depend on type of material, temperature and PRESSURE. `Value of conductivity do not depend on dimension . |
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