關於串聯和并聯

2007-02-04 4:24 pm
串聯和并聯燈泡既光度取決於咩???(cert level)

回答 (4)

2007-02-04 5:24 pm
✔ 最佳答案
電流

第一電池的電壓要一樣
第2電線長度粗幻
第3燈泡電座
每個燈泡的電座要唔同電泡同電壓
2007-02-05 4:22 am
取決于其真正的功率(而不是燈上寫的額定功率)



http://forum.cyberctm.com/forum/forumdisplay.php?fid=133
2007-02-05 1:54 am
Since power P consumed by a light bulb is given by:

P=I^2.R
where I is the current flow through the bulb, and R is the resistance of the bulb.

Since brightness of a bulb is related to the power it consumed, thus the brightness depends on the current through the bulb and its resistance.
2007-02-04 4:32 pm
如果總電壓不變,串聯和并聯燈泡既光度取決於流經燈泡的電流


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