1.

The resistivity of a material is 4xx10^(-8)Omega m and its conductivity. . . . . . . .

Answer»

`25xx10^(-8)"MHO m"^(-1)`
`0.25xx10^(-8)"mho m"^(-1)`
`25xx10^(8)"mho m"^(-1)`
`0.25xx10^(8)"mho m"^(-1)`

ANSWER :D


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