HOTS III — task. Science State Board, Class 10.

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A piece of wire of resistance 10

Ω

is drawn out so that its length is increased to three times its original length. Calculate the new resistance.

[Note: Enter the answer as a whole number].

The formula for specific resistance is

\begin{array}{l} ρ = \frac{i i}{i} \\ i = \frac{ρ i}{i} \end{array}

If the length is increased by three times, then the area of cross-section is decreased by .

i^{"} = \frac{ρ (i i)}{\frac{i}{i}}

\(R^{'}\) \(=\)

Ω

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20. HOTS III