Voltage Current & How to use Multi-meter What is AC DC

1     How to use multimeter

https://www.youtube.com/watch?v=VnL7-TbttGw

2    What is Voltage Current

https://www.youtube.com/watch?v=il7hh8_T2b0

3    Phase Neutral Earth

https://www.youtube.com/watch?v=at07IeCDoQQ

4    Electricity Generation AC DC How electricity is Produced

https://www.youtube.com/watch?v=FpzlZq_wDL4

5    Difference between AC and DC

https://www.youtube.com/watch?v=NsnOUgGZId4

https://www.youtube.com/watch?v=_Ka35sWThWs

6    DC Power Supply 

https://www.youtube.com/watch?v=bnmJVTj0Z-g