Treść książki
Przejdź do opcji czytnikaPrzejdź do nawigacjiPrzejdź do informacjiPrzejdź do stopki
Unit2.Electriccharge
15
Ifenoughchargebuildsuponanobject,electronsmaybepulledthroughthe
airbyanotherobjectcausinganelectricarc.Thiscansometimesbedangerous.
Inordertopreventchargebuild-upmanyappliancesareearthed,thatis,theyare
connectedtothegroundwithaconductortomaketheextrachargeflowawayto
theearth.
Otherappliancesthatmakeuseofforcesbetweenchargesarephotocopiers,
inkjetprintersandprecipitatorswhichremovebitsofashfromchimneysin
powerplantsandfactories.
TheSIunitofelectricchargeiscoulomb.Itisthequantityofelectricity
transportedinonesecondbyacurrentof1ampere.ItssymbolisC.
B.Readthetextaboutaninkjetprinterandanalyzethediagram.
Thenputthesentencesinthecorrectorder
Fig.2.2.Inkjetprinteroperation
