Physics > 2016 > 21
JAMB UTME
If a metal wire 4m long and cross-sectional area 0.8mm2 has a resistance of 6Ωm, find the resistivity of the wire.
A.
3.0 x 10-5Ωm
B.
3.2 x 10-6Ωm
C.
5.3 x 10-7Ωm
D.
1.2 x 10-6Ωm
Answer: D
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