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The resistance of a wire of length 10 m is 2 ohm. If the area of cross section of the wire is 2xx10^(-7)m^(2), determine its (i) resistivity (ii) conductance and (iii) conductivity |
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Answer» Solution :Given : LENGTH, `L=10`m, Resistance, `R=2` ohm and Area, `A=2xx10^(-7)m^(2)` Resistivity `rho=(RA)/(L)=(2xx2xx10^(-7))/(10)` `=4xx10^(-8)OMEGAM` Conductance, `G=(1)/(R )=(1)/(2)=0.5` mho Conductivity, `SIGMA=(1)/(rho)=(1)/(4xx10^(-8))` `=0.25xx10^(-8)"mho m"^(-1)` |
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