GEOLOGY

EARTH SCIENCE

MAGNETISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which material is a conductor?
A
glass
B
aluminum
C
wood
D
None of the above
Explanation: 

Detailed explanation-1: -Aluminium is a good conductor but not best. Silver is the best conductor. Silver has approx 6 % more conductivity than copper. Aluminium has less conductivity than both But due to low density, low cost and high resistance to corrosion Aluminium is preferred.

Detailed explanation-2: -In comparison to other metals like gold, silver, and copper, aluminium is a poor heat and electricity conductor. Aluminium has strong conductivity for electricity and heat because it has three electrons in the free state, but its conductivity is lower than copper since it is less dense.

Detailed explanation-3: -Aluminum is yet another metal known for its high conductivity of electricity. Though by volume its conductivity is only 60% of copper, by weight, one pound of aluminum has the electrical current-carrying capacity of two pounds of copper.

Detailed explanation-4: -Aluminum is a good conductor because it is a metal, and most metals are good electrical conductors. This is because of the atomic structure of metals, which allows electrons to easily move between atoms. Also, metals, including aluminum, have free electrons flowing throughout, even before a charge is introduced.

Detailed explanation-5: -Aluminium is a bad conductor of heat and electricity in comparison with other metals such as gold, silver and copper.

There is 1 question to complete.