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WAEC - Physics (1996 - No. 46)
A wire of length 100cm and cross-sectional area of 2.0 x 10
-3
cm
2
has a resistance of 0.10 Ω. Calculate its electrical conductivity.
5.0 x 10
7
Ω
-1
cm
-1
5.0 x 10
6
Ω
-1
cm
-1
2.0 x 10
6
Ω
-1
cm
-1
5.0 x 10
5
Ω
-1
cm
-1
2.0 x 10
6
Ω
-1
cm
-1
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