Resistance

• Resistance


  The potential difference required to drive a current through a component
• Current flowing through a component

  Electrical energy is transferred into other forms of energy (e.g. thermal)
• Resistance


  • Tells us the potential difference required to drive a current through a component
  • Indicates how much energy is required to push a coulomb of charge through
• Resistance equation


  Resistance (Ω) = Potential difference (V) / Current (A)
• Calculating resistance


  Plug in potential difference and current values into the resistance equation
• Calculating potential difference


  Potential difference (V) = Current (A) x Resistance (Ω)
• The unit for resistance is the ohm (Ω)