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2021 Holistic Circuitry, A Practical Approach(East China Normal University) 最新满分章节测试答案
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本课程起止时间为:2021-04-12到2021-06-30
Chapter 2: Learn the Principles of Diodes Easily and Joyfully Qiuz on Diodes
1、 问题:As shown in the figure, if power supply voltage is +5 volts and the forward voltage drop of the LED is +1.8 volts, what is the voltage across the resistor R1? (volt, voltage to Ground at TP1)
选项:
A:3
B:4.2
C:3.2
D:1.8
答案: 【3.2】 点我阅读全文