# Current, voltage and resistance

### Explanation of question 1

Examples of good electrical conducting material are

1. silver, copper and mica
2. aluminium, porcelain and platinum
3. rubber, glass and copper
4. copper, aluminium and platinum

The answer is :- 4

Silver, copper, aluminium and platinum are good electrical conducting materials. Mica, porcelain, rubber and glass are good electrical insulating materials.

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