Glass, wood and plastic make good electrical insulator.
To find the correct statement among all the options, we need to know about the insulator.
What is insulator?
The substance that doesn't carry free electrons throughout its bulk is known as insulator.
Why doesn't insulator carry current?
- In an insulator, there is no free electrons that roam inside its bulk to carry current.
- All the electrons are bounded to the atoms by covalent bonds to make a stable structure. So it doesn't carry current and electrical insulator.
- Example-Glass, wood, plastic.
Thus, we can conclude that the option (c) is correct.
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