Moar Ten Points (pg. 553 - 563)

• current flow is dependent on the voltage of the power supply and the 'nature of the pathway through the loads that are using electric potential energy'
• the measure of the opposition to flow is called resistance
•  R = V/I
  R is the resistance in ohms (Ω)
• the V/I ratio is constant for a resistor
  the ratio is called "Ohm's law"
• thinner wire has a larger resistance than thicker wire
• resistance of a conductor depends on its length (the longer the wire, the greater the resistivity), cross-sectional area (the thicker the wire, the less resistant), the material it is made of (some materials are better conductors than others), and its temperature (greater heat = greater molecular motion = more particle impediment)
• R1/R2 = L1/L2, R1/R2 = A2/A1, R1/R2 = ρ1/ρ2
  L = length, A = area, ρ = resistivity
• series circuits connect loads in a single path
• parallel circuits connect them parallel to each other
• Kirchhoff's current law: the total amount of current that flows through a junction point is the same as the amount of current that flows out of it
• Kirchhoff's voltage law: the total amount of potential decrease in a circuit loop is equal to the total amount of potential increase in that same loop