106中油儀電考古問題 - 國營工作討論
By Harry
at 2018-12-09T17:32
at 2018-12-09T17:32
Table of Contents
稽納崩潰電壓為6V的稽納二極體,在Iz變化1mA時會有100mV的變化,則當2mA流過 時,跨
於二極體兩端之電壓為?
(A) 6V
(B) 6.2V
(C) 6.4V
(D) 5.8 V
答案是 B
小弟理解因為稽納崩潰電壓有穩壓作用,
如果超過逆向差過崩潰電壓,兩端電壓不是會維持在崩潰電壓
答案為何不是 6.0V ?
觀念不太好,煩請熱心大大解釋 謝謝
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