Physics > 2014 > 37
JAMB UTME
If a metal wire 4 m long and cross-sectional area 0.8 mm2 has a resistance of 6Ω, find the resistivity of the wire.
A.
1.2x10-6Ωm
B.
3.2x10-6Ωm
C.
5.3x10-7Ωm
D.
3.0x10-5Ωm
Answer: A
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