Sorry I can't understand the chapter -electricity & circuits

Dear student,

Electricity is an important source of energy which is associated with the presence and flow of electric charges.Static and current electricity are the two parts of electricity.

an electric circuit is a circuit that gives us electricity from fossil flues, wind mils, hydro power, and solar power. 
If you want to know how it works: if you want to turn on the light then you have to on the switch. so when you on the switch the circuit closes and the electrons pass through and into the bulb and create the light.  


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