Chapter 8.5 Voltage Sources
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What is an electric conductor?
Any material that has free charged particles which easily flow through it when an electric force acts on them
What is an electric insulator?
Any material in which charged particles do not easily flow
What happens when there is a potential difference?
Charges in the conductor flow from the higher potential to the lower potential The flow of charge persists until both ends reach the same potential
How can you sustain a flow of charge in a conductor?
You must make some arrangement to maintain a difference in potential while charge flows from one end to the other. Ex: electrical pumps (chemical batteries or generators)
How do Electrical Pumps work?
They pull negative charges apart from positive ones, and the energy stored in the chemical bonds is converted to electrical potential energy.
By what process do generators separate charges?
Electromagnetic Induction, which takes place at the terminals