MCQ
Which of the following is a insulator:
- AGraphite
- ✓Air
- CAluminium rod
- DCopper rod
✓
Answer
Correct option: B.
Air
The conductors are $–$ Silver, copper, Aluminum, Nichrome, Graphite, Manganin, Mercury.
The insulators are $–$ Cotton, Air, Porcelain, Mica, Bakelite, Polyethylene, Sulfur
The insulators are $–$ Cotton, Air, Porcelain, Mica, Bakelite, Polyethylene, Sulfur
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