Electric Current

[匿名]

2007-12-10 2:36 am

I want to ask what is the difference of the electric current and voltage??
and if a circuit in series and parallel,the electric current and voltage in which kind of circuit will 勁D??
同埋多Ｄlight bulb,Electric current or voltage will increase??

回答 (1)

用戶92846

2007-12-10 3:24 am

✔ 最佳答案

Current 係講緊個流量，而Voltage 係講緊個壓力。

無論如何，o係一個Circuit 入面，Current 係點都一樣的，但係Voltage 就會一路一路減少，直至返到個Power Supply到係 0 。

試將電流及電壓當成係一個河流。 In Series，水的流量是不變的，但壓力一定係一路減少的。但，In Paralell，水的流量分了一半，水流變弱了，但壓力跟In Series一樣。

如果加多D light Bulb，係唔會加大到Voltage，因為呢個係一個Fixed Term而係跟據你個Power Supply的。但係Current 就會低了，因為 V = IR！！！

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