A wire of length 100 cm has a resistance of 10 ... - WAEC Physics 2014 Question
A wire of length 100 cm has a resistance of 10\(\Omega\). If its cross-sectional area is 0.005cm2, determine its resistivity
A
0.0005\(\Omega\)cm
B
0.0015\(\Omega\)cm
C
0.0016\(\Omega\)cm
D
0.0700\(\Omega\)cm
correct option: a
e = \(\frac{RA}{L} = \frac{10 \times 0.005}{100} = 0.0005\)
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