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Which of the following is the best conductor of electricity ?
(a) Copper
(b) Aluminium
(c) Gold
(d) Silver
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Answer Posted / bhunesh
(D) Silver
because
1) Very Low Resistivity 15.9 nΩ m.
2) Silver and Gold are the only metals, being found in a pure form from the earth.
3) silver is a good conductor of electricity like many other metals because the atoms that make up a piece of silver will have many free electrons that can be moved by applying voltage across it. These moving electrons are known as an electric current and they are necessary for making electrical and electronic equipment work correctly.
metals ρ (Low Resistivity in nΩ m)
Silver 15.9
copper 17.1
gold 22.1
aluminum26.5
tungsten52.8
zinc 59
brass 64
nickel 69.3
lithium 92.8
iron 96.1
platinum105
palladium105.4
tin (0 ℃)115
chromium126
tantalum131
solder 150
steel, plain180
lead 208
uranium (0 ℃) 280
titanium (0 ℃) 390
steel, stainless720
mercury (0 ℃) 941
plutonium 1414
manganese 1440
nichrome 1500
| Is This Answer Correct ? | 25 Yes | 3 No |
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