a wire of length 3 m and area of cross section 1.7*10^-6 m^2has a resistance 3*10^-2 ohm.
1) what is the formula for resistivity and its unit.
2)calculate the resistivity of wire
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Its formula is row *length /area
So
3*10^-2=row * 3/1.7*10^-6
Resistivity is 1.7*10^-8
So
3*10^-2=row * 3/1.7*10^-6
Resistivity is 1.7*10^-8
amanthebest:
answer is wrong
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Answer:
i dont know ununderstand the question
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