physiscs quiz

What is a battery?

• A cell which is connected to a wire

• Two or more cells combined together

• A switch in on possition

• A switch in off position

What will happen if the circuit is closed

• The bulb will not glow

• The bulb will glow

• The bulb will blast

• The battery will burn

What is the coil wire of a room heater or an electric heater known as

• Filament

• Element

• Fuse

• Cell

What is a electric fuse?

• A device which is used to break electric circuit

• A device which is used to break electric cell

• A device which is used to emit heat

Where is the element located in hair dryers, geysers,irons etc..

• In its charger

• Inside of the electric appliances

• outside of the electric appliances

• no element in electric appliances

In which part will the bulb glow

What is the use of electromagnets?

• To give magnetic force to other metals

• To separate magnets from a pile of junk

• To give electricity in other magnets

• To supply electricity through magnets

What is the symbol of bulb?

• 
• 
• 
• 

what is a conductor of electricity?

• A device which allows heat to pass

• A device which dose not allow heat to pass

• A device which allow electricity to pass

• A device which dose not allow electricity to pass

Which bulb uses less electricity?

• LCD

• LED

• CFL

• FLUORESCENT TUBES