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About Electricity
13. Power Supply
14. Switch
15. Home Appliances
16. Wire
A power supply is an electronic device that supplies electric
energy to an electrical load. The primary function of a power
supply is to convert one form of electrical energy to another.
There are both DC (direct current) and AC (alternating current)
power supplies. Batteries are a type of power supply in which
chemical energy is converted into electricity.
A switch is a device that controls all the other components in the
circuit. It is used for power connection and disconnection. A switch
should be connected in series with the other functional components,
otherwise, it will cause a short circuit.
Home
appliances
are
electrical
/
mechanical
machines which accomplish
some home functions such
as cooking or cleaning.
Wire is mainly used for connecting circuits and transferring
electricity.
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