Generators energy transfer
Mechanical to Electrical
AC Components
2 Slip rings
Slip rings make contact with carbon brushes (connected to external circuit)
AC generator Uses
Electrical power plants
Recharge car batteries
Supply power on construction sites
DC components
A Split ring commutator
DC generator uses
Electroplating
Battery chargers
Bicycle dynamo
Hand Rule
Thumb - force of conductor
Index - magnetic field
Middle - induced current
Generators Hand
Right hand
Motors Hand
Left Hand
Advantages of AC
Voltage can be changed by transformers
Easier and cheaper to convert AC to DC
Increasing induced EMF (AC)
Increase number of turns in coil
Increase area of coil
Increase strength of magnets
Decrease time it takes to change magnetic influx
Motors energy conversion
Electrical to mechanical
DC motor uses
Electric trains
Starter motors in cars
Photocopiers
AC motors uses
Washing machines
Electric fans
Electric drills
Food processors
