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What is a different between current and voltage in power supply and why?

I am a student in majan college - sultanate of Oman. I want Know this because I study about this.

Thanks

AL_Amri Hilal

2006

You should have a course book that covers this subject, Al_Amri. It is impractical to study a subject without books. But the usual analogy provided in those books is that current is a measure of flow very much like the flow of water in a river or through a pipe and faucet, whereas voltage is a measure of force very much like water pressure. You can have high pressure but no flow when a tap is closed or a circuit is broken; you can slightly open the faucet and have a very low flow because the resistance is great; or you can open the tap all the way for a high flow because the resistance is low. In the study of electricity this relationship between current, voltage and resistance is called Ohm's Law: Current = Voltage / Resistance.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2006

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