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:
a: resistivity= restistance*cross sectional area/length, unit is Ohm meters
b:1.7x10^-8 ohm meters
Explanation:
Plug in values as i gave in part a to reach part b
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