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⚡ELECTRICITY AND DIRECT CURRENT CIRCUITS⚡, close and open circuits,…
⚡ELECTRICITY AND DIRECT CURRENT CIRCUITS⚡
A circuit is open when the energy of the power source cannot reach the load devices
A circuit is closed when the energy of the power source reaches the load devices
Electrical circuit : an electrical circuit is a series of interconnected components that an electric current flows thoug to produce an effect ( like ligh , heat , sound or motion)
Conductors : are materials that let electric current flow through them
Insulators : are materials that do not let electric current flow though them
Electrical energy
ELECTRICITY : is a form of energy that lets negatively charged particles ( electrons ) move from atom to another
ELECTRIC CURRENT : is the flow of de electrons from one atom to another inside a conductie material
Tipes of circuits :star:
-Series circuits:
all the components are conected one after the other
parallel circuits :
the load devices are conected on diferent branvhes of the wire
-Heat : When electrons move trough a conductor or load device , they create friction with the material as they pass through , which produces heat
-Motion : the effect obtained when we make a electric current flow throug a motor is that its shaft turns in a rotari motion
-Light : We can convert electricity to light trough load devices such as incandescent lamps
-Sound : the soud that comes out of a loudspeaker is produced by vibrations in a menbrane that are caused by electrical energy
Energy and the enviroment
Mani power stations have an impact on our enviroent The use of renewable energies is a being promoted as a green alternative to conventional power stations .
when we save energy we save natural resources
tips
remplace old electrical appliances whith more efficient ones (that consume less energy )
use certain domestic applicaces only when they are full
remplace incandescent bulbs whith low energy bulbs
CONVERTING ELECTRICAL ENERGY
