The Concept of Electric Charge
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Conductors, insulators, and electron flow (Ακαδ.Έτος 2009/2010)
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electric circuits
The Voltage and the Current
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Voltage and current (Ακαδ.Έτος 2009/2010)
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electric circuits
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Electric circuits (Ακαδ.Έτος 2012/2013)
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electric circuits