A piece of conducting putty is in the shape of a cylinder of length 60 mm and diameter 20 mm.
The resistance between the ends of the cylinder is 20 Ω.
What is the resistivity of the putty?
1 )
0.033 Ωm
0.10 Ωm
3 )
0.42 Ωm
4 )
5.2 Ωm
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