Calculate the resistance of a wire 1 km long, resistivity 1.6* 10^-8 ohm meter and the area of cross section is 9.01 square cm
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length = 1000m
Resistivity = 1.6 × 10^-8 ohmic m
Area = 9.01 cm2
Area = 0.03 m2
R = p × L / A
R = 1.6 × 10^-8 × 1000 / 0.003
R = 1600 / 0.003 × 10^8
R = 1600 / 3 × 10^5
R = 16 / 3 × 1000
R = 16 / 3000
R = 0.0053 ohms
Please confirm the answer
is it correct
Resistivity = 1.6 × 10^-8 ohmic m
Area = 9.01 cm2
Area = 0.03 m2
R = p × L / A
R = 1.6 × 10^-8 × 1000 / 0.003
R = 1600 / 0.003 × 10^8
R = 1600 / 3 × 10^5
R = 16 / 3 × 1000
R = 16 / 3000
R = 0.0053 ohms
Please confirm the answer
is it correct
agjpr15:
There's a mistake
Can you take area as 0.01 cm2
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