Wine Analysis

Electrical potential

• Most aspects of electricity can be better under stood if we view it as flowing water (see diagram)
  
  
• Electro motive force (emf - measured in volts (V)), is the driving force or push behind a flowing electrical current.
  
  
• An electrical potential is the term used for the electro motive force in electrochemistry where there is no current flow, but a electrical potential exists.