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QUESTION 3 A rod, of length L and square cross section of side a, has a resistance R. What is the new value of the resistance


QUESTION 3 A rod, of length L and square cross section of side a, has a resistance R. What is the new value of the resistance
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Answer #1

R = ll 1 a² Resistance (R)- el l: length f: resistivity (material property) A A: Area of cross-section A 2 Now. ľ = 21 a=% =

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