A conductor is a substance in which electrons can move freely from one atom to another.

An insulator is a substance in which electrons cannot move from one atom to another.

Common Conductors and Insulators

Good Conductors Fair Conductors Good Insulators (Non-conductors)
Silver Carbon Oil
Copper Human body Fur
Gold Moist human skin Silk
Aluminum Acid solutions Wool
Magnesium Salt water Rubber
Tungsten Earth Porcelain, glass
Nickel Water vapour (in air) Plastic
Mercury Wood
Platinum Paper
iron Wax
ebonite

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102 Comments
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ML Akash
ML Akash
9 months ago

Please tell me an insulator example.

A J
A J
1 year ago

Rubber is really effective because it can cancel the electrons flow

Justin B.
Justin B.
1 year ago

is yarn a conductor or an insulator

Gaha
Gaha
1 year ago

Is Wool is a conductive material? which means it readily gives away its electrons.

SUHAVI
SUHAVI
1 year ago

Thank you so much; But most of the examples of conductors are metals.
Are metals are the best conductors? If any other examples of conductors?

JW
JW
Reply to  SUHAVI
1 year ago

Metals are considered the best conductors, but diamond is a good heat conductor as well, but it is also an electrical insulator.

Christopher
Christopher
2 years ago

I need help with this question

Ka Miya
Ka Miya
2 years ago

Is a hat a conductor 🤔

JW
JW
Reply to  Ka Miya
1 year ago

Depends on the material, but it is most often an insulator, not a conductor

Jaliey
Jaliey
2 years ago

is cotton a conductor or insulator? (Cotton Balls).

JW
JW
Reply to  Jaliey
1 year ago

insulator 🙂

S. Wloe
S. Wloe
3 years ago

can you add more semi conductor’s because they are the most confusing but otherwise GREAT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ian B.
Ian B.
3 years ago

Thanks a lot! Best educational site ever! <3

Bob
Bob
3 years ago

Thank you….༼ つ ◕_◕ ༽つ

boby
boby
4 years ago

amazing helped me with homework would recommend to any one 🙂

Clare
Clare
4 years ago

Thanks helped in my homework

Jasob RF.
Jasob RF.
4 years ago

Thanks

Mike
Mike
4 years ago

Thank you so much I had a test!

Guest
Guest
4 years ago

I need more but it’s good

Rudy
Rudy
4 years ago

Helped me

Jessica
Jessica
4 years ago

Helped me im school thanks

Kartik
Kartik
4 years ago

Conductors are all the metals like aluminium ,copper etc….and insulators are the materials which can’t conduct electricity like rubber ,silk,paper

Sophia
Sophia
4 years ago

This was helpful, but how about listing not good insulators?

Anonymous
Anonymous
Reply to  Sophia
4 years ago

almost the same as a conductor