Materials which do not allow electricity or electric current to pass through them are known as insulators. Rubber, wood, glass, plastic, pure water and dry air are examples of insulators.
Materials which do not allow electricity or electric current to pass through them are known as insulators. Rubber, wood, glass, plastic, pure water and dry air are examples of insulators.
Conductors are materials which allow electricity to pass through them. All metals can conduct electricity such as copper, aluminium, iron, gold, etc. Few non-metals such as graphite can also conduct electricity.
Conductors are materials which allow electricity to pass through them. All metals can conduct electricity such as copper, aluminium, iron, gold, etc. Few non-metals such as graphite can also conduct electricity.
What are insulators? Give examples.
Materials which do not allow electricity or electric current to pass through them are known as insulators. Rubber, wood, glass, plastic, pure water and dry air are examples of insulators.
Materials which do not allow electricity or electric current to pass through them are known as insulators. Rubber, wood, glass, plastic, pure water and dry air are examples of insulators.
See lessWhat are conductors? Give example.
Conductors are materials which allow electricity to pass through them. All metals can conduct electricity such as copper, aluminium, iron, gold, etc. Few non-metals such as graphite can also conduct electricity.
Conductors are materials which allow electricity to pass through them. All metals can conduct electricity such as copper, aluminium, iron, gold, etc. Few non-metals such as graphite can also conduct electricity.
See lessWrite any two properties of a magnet.
(i) Magnets attract objects such as iron and nickel. (ii) A freely suspended magnet always aligns in north-south direction.
(i) Magnets attract objects such as iron and nickel.
See less(ii) A freely suspended magnet always aligns in north-south direction.
What are non-magnetic substances?
The materials which are not attracted by a magnet are called non-magnetic substances.
The materials which are not attracted by a magnet are called non-magnetic substances.
See lessWhat is a magnet?
A substance that can attract magnetic substances like iron, nickel etc. is called a magnet.
A substance that can attract magnetic substances like iron, nickel etc. is called a magnet.
See less