A wire of length 3 m and area of cross-section 1.7 × 10-6 m2 has a resistance 3 × 10-2 ohm.
a. What is the formula for resistivity of the wire and what is the unit of it.
b. Calculate the resistivity of the wire.
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Answer:
Copper wire of length 3 m and the area of cross section 1.7 × 10^-6 m^2 has a resistance of 3 × 10^-2 m^2 ohms. Calculate the resistivity of copper
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