電阻4Ω與電感抗j4Ω並聯,等效阻抗Z為多少? (A)8+J8Ω (B)2+J2Ω (C)4+J4Ω (D)J64Ω。?

2019-07-05 2:05 am

回答 (2)

2019-07-06 10:12 pm
Z=Z1*Z2/(Z1+Z2)
=4*j4/(4+j4)
=j4/(1+j)
=j4*(1-j)/((1+j)(1-j))
=(j4+4)/(1+1)
=2+j2 Ω
2019-07-05 12:38 pm
電阻與電感並聯等效阻抗
Z=R+jL= 4+J4Ω
(C)4+J4Ω


收錄日期: 2021-05-04 01:06:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20190704180546AAi90bB

檢視 Wayback Machine 備份