Question

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Answer 1

Answer:

Solution:

Length of cylinder, L = 10cm

And area = 2 cm²

The given resistance = 20 ohm =20

We know very well that:

R = p LA

From this formula we can find p = R/AL

P = 20×2/10 = 4ohm - cm = 0.04 ohm - m

Here p = resistivity

The required resistivity = 0.04ohm -m

Explanation:

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