• Flow of charge
  • Ehen ends of conductor are different charges, electrons flow
  • the flow persists as long as there is a difference
• Electric Current
  • Flow of electrons == electric current
  • 1amp == 1 colomb per second
  • amp == amperes
  • 
  • $$ 6.2 * 10^{18} $$
• Difference between charges is potential difference, EMF, electromotive force
• Conventional Current
  • assume postice flows to negative
• Electrical Resistance
  • quality to reduce current of current
  • depends on
    • temperature
    • length
    • cross section
    • area
• Ohms Law
  • the current proportional to current
  • $$voltage = current * resistance$$
• Electric power
  • Watts
  • $$power = current * voltage$$
• Electric Circuit
  • Series
    • Run through multiple points
    • 
    • Less energy as it goes on, and drops proportional to resistance
  • Parallel
    • 
    • more paths == less resistance
    • $$\frac{1}{resistance} = \frac{1}{resistance_1} + \frac{1}{resistance_2} + ...$$
    • Same voltage, different current
    • current divided among parallel branches
    • current can get very high