EARTH SCIENCE
MAGNETISM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
wooden ruler
|
|
|
paper clip
|
|
|
metal key
|
|
|
copper penny
|
Detailed explanation-1: -A non-conductor or insulator, is a material that resists the flow of electricity and does not allow the electrons to pass freely through it. Examples of good insulators include wood, glass, and plastics.
Detailed explanation-2: -While wood is generally considered to be a modestly good insulator, you should realize that a pencil has a moderately conductive core (the pencil “lead”) and a wooden ruler may contain a conductive steel ribbon insert along one edge.
Detailed explanation-3: -Examples of Conductors Copper, Brass, Steel, Gold, and Aluminium are good conductors of electricity. We use them in electric circuits and systems in the form of wires.
Detailed explanation-4: -silver. copper. gold. aluminum. iron. steel. brass. bronze. More items