30 開關S1置於a點已達穩態;若時間t=0,將開關S1置於b點,則此電阻R1端電壓vR1的響應 為何?
(A)vR1=40e-0.1t V
(B)vR1=20e-0.1t V
(C)vR1=40e-10t V
(D)vR1=40e-5t V
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統計: A(32), B(37), C(308), D(43), E(0) #1094349
統計: A(32), B(37), C(308), D(43), E(0) #1094349
詳解 (共 5 筆)
#1519333
a點算電流,b點重算時間常數
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#1519381
Thanks
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#1446701
求解
3
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#3378112
為什麼R1是40V不是20V呀
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