誰人可給我phy tas Phase difference in CR and LR circuit??(贈點: 5)

👨🏻‍🏫 學術台其他 - 科學

用戶170272

2007-01-23 4:55 am

誰人可給我phy tas Phase difference in CR and LR circuits??
急要....星期二晚deadline ><.......thx~
(一定要有0個d問題的答案,如愈詳細給予愈多分數)

更新1:

1.what is the phase difference between the p.d. and the current? 2.Change the resistance value.Phase difference有乜影響?

更新2:

1.what is the phase difference between the p.d. and the current? 2.Change the resistance value.Phase difference有乜影響?

更新3:

3.Replace the capacitor with a high inductance coil fitted on a double c-core.What is the phase diff. between the p.d. across the inductor and the current through it?Why is it not 90°? (我想要埋個CRO traces)

回答 (2)

tungmaggie

2007-01-27 6:46 am

✔ 最佳答案

1) phase difference between the p.d. and the current : π/2 ( theoretical value) /less than π/2 ( exptal value if R is large)
2)If R is larger than before, phrase difference is less than π/2
3) phrase difference is π/2 ( theoretical value) /less than π/2 ( exptal value if R is large)
ess than π/2
this is because current is compared with p.d. across L and R, rather than that across L.

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天同

2007-01-23 5:09 am

What are your questions?

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