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p37 - The CELL The T h e c e lls to re s chemical energya...

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The CELL The CELL The  c e ll s to re s   chemical energy  and trans fe rs  it to   e le c tric al e ne rg y  whe n a c irc uit is  c o nne c te d. Whe n two  o r m o re  c e lls  are   c o nne c te d to g e the r we  c all this  a  Battery . The  c e lls  c he m ic al e ne rg y is  us e d  up pus hing  a c urre nt ro und a  c irc uit.
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What is an electric current? An e le c tric  c urre nt is  a flo w o f m ic ro s c o pic  partic le s   c alle d  electrons  flo wing  thro ug h wire s  and  c o m po ne nts .  + - In whic h dire c tio n do e s  the  c urre nt flo w?     fro m  the   Negative  te rm inal  to  the   Positive  te rm inal o f a c e ll.
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simple circuits simple circuits He re  is  a s im ple  e le c tric  c irc uit. It has  a c e ll, a lam p  and a s witc h.  To  m ake  the  c irc uit, the s e  c o m po ne nts  are  c o nne c te d  to g e the r with m e tal c o nne c ting  wire s .
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