Use the resistivity value quoted in given table to calculate the lengths of 0.50mm diameter manganin wire needed to make resistance coils with resistances of:

$10\Omega$.

$1.0c{m}^3$Of copper is drawn out into the form of a long wire of cross-sectional area $4.0\times {10}^{-7}{m}^2$. Calculate its resistance. (Use the resistivity value for copper from Table)

A $1.0m$, length of copper wire has a resistance of $0.50\Omega$, then calculate the resistance of a $50.m$, length of the same wire.

A$1.0m$ Length of copper wire has a resistance of $0.50\Omega .$ What will be the resistance of $1m$ length of copper wire having half the diameter of the original wire?

An element of an electric fire is made up from a length of nichrome wire of diameter $0.40mm$ and length $5.0m$. The resistance of this element is $R_1.$ Another element, also made from nichrome, for a different electric fire, has a length of $2.0m$ and a diameter of $0.20mm.$ This element has a resistance of $R_{2.}$ What is the relationship between $R_1$ and $R_2$ ?

This is a circuit.

Which line in the table shows the changes to the lamp and the voltmeter reading when the temperature rises?

This shows the $I-V$ Characteristic of an electrical component.

Calculate the resistance of the component when the potential difference across it is  $2.0V$.

This shows the $I-V$ Characteristic of an electrical component

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Calculate the resistance of the component when the potential difference across it is $5.0V.$