PHYS 102 Chapter Notes - Chapter 25: Circuit Diagram, Electrical Breakdown, Algebraic Solution
15 Feb 2017
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An electric current consists of charges in motion from one region to another. The path that a charge follows is called an electric circuit. Electric circuits convey energy from one place to another. Electric potential energy is transferred from a source to a device as charged particles move within the circuit. That energy is either stored or converted into another form. Allows energy to be moved without any moving parts. Current is any motion of charge from one region to another. In electrostatic situations the electric field is zero everywhere within the conductor and there is no current. Free electrons move randomly in all directio(cid:374)s (cid:271)ut do(cid:374)"t lea(cid:448)e the (cid:272)o(cid:374)du(cid:272)ti(cid:374)g (cid:373)ate(cid:396)ial due to their attraction to the positive ions of the material. The motion of the electrons is random, so there is no net flow of charge in any direction and hence no current.
