A) Copper < Nichrome < Germanium < Silicon
B) Germanium < Copper < Nichrome < Silicon
C) Nichrome < Copper < Germanium < Silicon
D) Silicon < Nichrome < Germanium < Copper
Correct Answer: A
Solution :
(a) Copper < Nichrome < Germanium < Silicon| Materials | Resistivity \[(\rho )\,(\Omega m\,\,at\,\,0{}^\circ C)\] |
| Copper (Cu) | \[1.7\times {{10}^{-8}}\] |
| Nichrome | \[100\times {{10}^{-8}}\] |
| (alloy of Ni, Fe, Cr) | |
| Germanium | 0.46 |
| Silicon | 2300 |
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