PHSC 1001 Chapter : Chapter 23 Slides Pt1
Document Summary
You can never have a fraction of this charge: conductors allow for the flow of charge through them while insulators do not. Review: electric force and field: coulomb"s law looks like the universal gravitational law: kf = K = 9 109 nm2/c2 qq. 2 d: charges produce electric fields like mass produces gravitational fields. The field points in the direction a positive charge would move in that field. Unit: volt (v) = j/c: the electric potential is also referred to as voltage. Voltage source: we need a potential (voltage) difference to induce a current. This is the pump in our plumbing example: batteries are a source of potential difference. That"s why the strength of a battery is measured in v: charge flows through a circuit when there is is potential difference across it. Water will flow though a pipe when there is a pressure difference across it.
