The electrical resistivities of three materials P, Q and R are given below:$\begin{matrix}\text{P}&2.3\times10^{3}\Omega\text{ m}\\\text{Q}&2.63\times10^{-8}\Omega\text{ m}\\\text{R}&1.0\times10^{15}\Omega\text{ m}\end{matrix}$
Which material will you use for making:
Which material will you use for making:
- Electric wires.
- Handle for soldering iron, and
- Solar cells?
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- Material Q with resistivity 2.63 × 10-8 ohm-m can be used for making electric wires because it has very low resistivity.
- Material R with resistivity 1.0 × 1015 ohm-m can be used for making handle of soldering iron because it has very high resistivity.
- Material P with resistivity 2.3 × 103 ohm-m can be used for making solar cell because it is a semiconductor.
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