Class VIII

Plastic wire is
  1. An insulator
  2. A conductor
  3. Both of these
  4. None of these
Most liquids that conduct electricity are solutions of ____________
  1. acids
  2. bases
  3. salts
  4. all of these
The whole apparatus of electrodes, electrolytes and vessel containing them is called _____
  1. thermometer
  2. electrometer
  3. voltameter
  4. ammeter
To prevent iron from corrosion it is electroplated with __________
  1. aluminium
  2. copper
  3. oxygen
  4. zinc
An electric lamp glows due to
  1. Chemical effect
  2. Magnetic effect
  3. Heating effect
  4. None of these
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