Transformers

  • Only works with AC; does not work with DC.

  • Everything is based on energy conservation (Power_1 = Power_2): a Transformer can increase the Voltage, decreasing the Current; or decrease the Voltage, increasing the Current.

  • Transformers - EngineeringMindset .

    • At 4:39  of the video, the difference between 120V and 240V is explained.

  • The formula that associates Voltage and 'Number of Turns' is: V1/V2 = N1/N2.