Resistivity of a wire — task. Physics CBSE Live product, Class 10 (2026-27).

Calculate the correct value below:

The resistance of a wire of length 10 \(m\) is 4

Ω

. If the area of cross section of the wire is

8 \times 10^{- 7} m^{2}

Determine its resistivity.

[Note: Enter the answer up to two decimal places.]

Answer:

Resistivity, \(\rho\) \(=\)

\times 10^{- 7} Ω m

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9. Resistivity of a wire