Applied Sciences paper help
videos:
1- Electric charges :http://www.youtube.com/watch?v=QcBVa1VKUdc
2- Positive and Negative Charges: http://www.youtube.com/watch?v=MStALLM5FuQ
3- What is Voltage: http://www.youtube.com/watch?v=g287MugJC9E
4- Current | Introduction to electrical engineering | Electrical engineering | Khan Academy: http://www.youtube.com/watch?v=ZRLXDiiUv8Q
