PHYS 212L Chapter 24: Electric Current
3 Feb 2019
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Document Summary
Current current is the net rate of charge crossing an area units : bspersecond( ampere. Current whose magnitude is the current per unit area. Ohm "s law relates voltage , current and resistance. States that the current to the object "s resistance. I an object is proportional through to the voltage across it s inversely proportional a given voltage can push more current through a lower resistance two extreme cases : Open circuit can flow nonconducting gap with infinite resistance no matter the voltage , no current. Zero resistance current of any magnitude is possible without any voltage or electric field resistance depends on the resistivity p and the length. S area of a particular piece of material. S macroscopic quantities s ohm "s law microscopic macroscopic relation. E is defined at each point in a material. ; v is the integral of e over a path . in a uniform field.
