Which of the following is NOT an insulator?

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ALP CBT 2 Electrician Previous Paper: Held on 22 Jan 2019 Shift 1
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  1. Glass
  2. Mica
  3. Wood
  4. Gold

Answer (Detailed Solution Below)

Option 4 : Gold
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Detailed Solution

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In the above question except ‘Gold’, all given options are the examples of 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

   

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