GK
PHYSICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Insulator
|
|
|
Conductor
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -A few examples of a conductor are silver, aluminium, and iron. A few examples of an insulator are paper, wood, and rubber. Electrons move freely within the conductor. Electrons do not move freely within the insulator.
Detailed explanation-2: -Insulators are materials that have just the opposite effect on the flow of electrons that conductors do. They do not let electrons flow very easily from one atom to another. Insulators are materials whose atoms have tightly bound electrons.
Detailed explanation-3: -Some materials behave in between a conductor and an insulator. These materials are called semiconductors.
Detailed explanation-4: -Semiconductors: Materials with an electrical conductivity value that falls between that of a conductor and that of an insulator. Insulators: Materials that do not readily conduct electricity (i.e., materials with high electrical resistivity)
Detailed explanation-5: -Examples of insulators include plastics, Styrofoam, paper, rubber, glass and dry air.