How Electricity Works

Ken BrewerMCOMM 520

Electric sources

• Generator – Converts mechanical energy into electrical engergy

• Battery – Chemical Energy Generates Electricity

Stepping Down• Power Station – Sub Station – Step Down

Transformer – Service Panel

Using Electricity

• Service Panel to 120V outlets in your home

Electronics

• DC Power Supply converts 120VAC to DC

• Electronics = less than 1 amp (1 amp can kill you)

Ohm’s Law

• V = I x R

• R = V/I

• I = V/R