Voltage and Current

stephaniewaisin

2006-10-24 5:35 am

I want to ask what are the differences between voltage and current??

回答 (2)

用戶103098

2006-10-24 8:40 pm

✔ 最佳答案

Voltage is the difference of electrical potential between two points of an electrical network, expressed in volts. It is a measure of the capacity of an electric field to cause an electric current in an electrical conductor.
http://en.wikipedia.org/wiki/Voltage

Electric current is by definition the flow of electric charge. The SI unit of electric current is the ampere (A), which is equal to a flow of one coulomb of charge per second.
http://en.wikipedia.org/wiki/Electric_current

參考: Wikipeida

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波波橙

2006-10-24 5:41 am

电压voltage (V) 和电流current (I) 是有以下的相互关系:-

I=V/R (Ohm's Law)

where R is resistance(电阻)

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