關於串聯和并聯
串聯和并聯燈泡既光度取決於咩???(cert level)
回答 (4)
✔ 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
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.
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
收錄日期: 2021-04-29 17:22:21
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