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Electric Circuits- the components + symbols for them: need to know for exam:

  • CELL(1)            -  to push electrons around a complete circuit.
  • BATTERY (+1)2 or more cells
  • SWITCH     -  enables the current in a circuit to be switched ON or OFF.
  • INDICATOR- to emit light when when a current passes through it

----0  /___  switch open- current cannot flow 

----0----0--- switch close- current is able to flow 


  • DIODE- allows current


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