7-9

• • V= Voltage 
  • I= Current 
  • R= Resistance
• (Ohm’s law calculations and reading graphs)

  Equation: (V = I x R) (I = V/R) (R = V/I)
• Note: If two of the variables are known, the third can be calculated.
• (Series vs. Parallel circuits)

  • Closed circuits: Unbroken electron path which electrons are moving.
• • Open circuit: Electrical path with a break with no electron flow.
• • Series Circuit: A circuit that provides only one path for electrons to flow
• • Parallel Circuit: Circuit providing many paths for electron flow.