circuit
2011-08-22 4:47 am
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In the circuit, determine the readings on the ammeters A1 and A2.
Assume that the internal resistances of both ammeters and the battery are negligible.
回答 (1)
2011-08-22 5:27 am
✔ 最佳答案
A2 should reads zero since its terminal points are of equal potential according to the potential dividing theorem.Hence equivalent resustance is equal to:
(10 + 10)//(10 + 10) = 20//20 = 20 x 20/(20 + 20) = 10Ω
Thus A1 reads 6/10 = 0.6 A
參考: 原創答案
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110821000051KK00965