The electrical resistivities of three materials P, Q and R are given below : P 2.3 x 10 3 Ω m Q 2.63 x 10 -8 Ω m R 1.0 x 10 15 Ω m Which material will you use making (a) electric wires (b) handle for soldering iron, and (c) solar cells? Give reasons for your choices.

Question

The electrical resistivities of three materials P, Q and R are given below : P 2.3 x 10 3 &#x3A9; m Q 2.63 x 10 -8 &#x3A9; m R 1.0 x 10 15 &#x3A9; m Which material will you use making (a) electric wires (b) handle for soldering iron, and (c) solar cells? Give reasons for your choices.

Philoid · Accepted Answer

(a) Material Q with resistivity 2.63×10^-8 ohm-m can be used for making electric wires because it has very low resistivity.

(b) Material R with resistivity 1.0 ×10¹⁵ ohm-m can be used for making handle of soldering iron because it has very high resistivity.

(c) Material P with resistivity 2.3 × 10³ ohm-m can be used for making solar cell because it is a semiconductor.

The electrical resistivities of three materials P, Q and R are given below :P 2.3 x 103 Ω mQ 2.63 x 10-8 Ω mR 1.0 x 1015 Ω mWhich material will you use making (a) electric wires (b) handle for soldering iron, and (c) solar cells? Give reasons for your choices.

The electrical resistivities of three materials P, Q and R are given below :
P 2.3 x 10³ Ω m

Q 2.63 x 10^-8 Ω m

R 1.0 x 10¹⁵ Ω m

Which material will you use making (a) electric wires (b) handle for soldering iron, and (c) solar cells? Give reasons for your choices.