Question

Which of the following is an insulator?
A. Wood
B. Iron
C. Carbon
D. Silver

Answer 1

Hint: Some normal Insulators materials are glass, plastic, elastic, air, and wood. Most strong materials are delegated covers since they offer enormous protection from the progression of electric flow. A material used to oppose the progression of warmth is known as "Thermal protection".

Complete answer:
The correct answer is A.

An insulator is a material or technique that confines the exchange of either heat or power. Insulators are utilized to shield us from the hazardous impacts of power coursing through conductors. Insulators are materials that have the polar opposite impact on the progression of electrons. They don't let electrons stream effectively starting with one molecule then onto the next. Covers are materials whose particles have firmly bound electrons.

Iron and Silver are metals, so they are conduits. At the same time, carbon is a conductor in graphite and encasing in jewel structure. So the only alternative left is wood which has Insulators. Wood is a characteristic cover because of air pockets inside its cell structure, which implies that it is multiple times superior to brickwork, multiple times superior to steel, and multiple times better than Aluminium.
These electrons are not allowed to meander around and be shared by neighboring particles.

Note: Thermal covers work by diminishing the rate of heat that can go through space. Fundamentally, they utilize explicit materials which will keep the heat-conveying matter from moving. Then again, if there is an occurrence of power, Electrical encasings confine the electric flow to a picked way. They do most work by utilizing a material with numerous external electrons, a condition that will cause low electrical conductivity.