Physics WAEC

A resistance wire of length 2 m and of uniform cross-sectional area 5.0 x 10^-7 m² has a resistance of 2.2 Ω. Calculate its resistivity.

A. 1.8 x 10^-7Ωm
B. 5.5 x 10^-7Ωm
C. 1.8 x 10^-7Ωm
D. 5.8 x 10^7Ωm

Correct Answer:

Option B – 5.5 x 10^-7Ωm

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5 years ago

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