Electric lamps

The filament made out of ......................

• Copper

• Iron

• Tungsten

• Lead

A gas is used in electric lamps

• Carbon

  dioxide

• Argon gas

• Oxygen

  gas

• Nitrogen

ALL The following gasses are used in electric lamp expect

• Argon gas

• O2

• Mercury vapor

• A&C

Spiral base has a peace of lead

• T

• F

The light bulb is used in ..........................

• Lighting houses

• Decorating commercial

  Stores

• Car lights

• Touches

• Commercial

  Advertisements

The sun is from artificial sources

• F

• T

The electric lamps convert electric energy to .......................... energy

• kinetic

• sound

• light

• magnetic