eletric circute

how much termenal does a blub use

which filament is used for making blub

• tungsten

• helium

• hydrogen

• aluminam

devise which is used to make or break the circuit

example for portable device

• fan

• light

• mobile

• car

we should plug a cable when the switch is on

• true

• false

in primary cell it is rechargeable

• true

• false

meal is a good conductor but rubber is a insulator

• true

• false

this fan is off which circuit is this

• open circuit

• closed circuit

when the light is on which circute will come

• closed circuit

• open circuit

• both

• none

aluminum is a bad conductor

• true

• false