A wire 1.0m long and with cross-sectional area 2.0 x 10-7 m2 has a resistance of 0.1\(\Omega\). Calculate the electrical conductivity of the wire
a
2.0 x 107\(\Omega^{-1} m^{-1}\)
b
5.0 x 107\(\Omega^{-1} m^{-1}\)
c
2.0 x 108\(\Omega^{-1} m^{-1}\)
d
5.0 x 108\(\Omega^{-1} m^{-1}\)
Explanation
Correct Option
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Discussions (9)
lexi_gramm
4 years ago
Please some students are freaking out because this platform sometimes makes them feel like they arent ready for their exam
please be careful
Angelaprecious
6 years ago
Conductivity =L/R*A
L=1 ; R = 0.1; A =2×10^-7
K = 1/ 0.1× 2×10^-7
K =2×10^8
The answer is c
