Transformers

• How many Volts and Hertz is Mains electricity?


  240 Volts and 50 Hertz
• Step-Up Transformer:

  This is a STEP-UP transformer as it has more turns on the secondary coil

  A) Primary Coil

  B) Secondary Coil

  C) Iron Core

  
• Step-Down Transformer:

  This is a STEP-DOWN transformer as it has more turns of the coil on the primary coil

  A) Primary Coil

  B) Secondary Coil

  C) Iron Core

  
• Describe how a Step-Up Transformer works

  1. The input alternating current enters the primary coil
  2. The primary coil induces an alternating magnetic field
  3. This then induces an output alternating potential difference in the secondary coil
• Why do we use Step-Up and Step-Down Transformers?

  • To reduce any wasted energy by heat being produced by the high current of the Mains Electricity
  • To safely and more efficiently transport Mains electricity