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题目 如图 1所示 ,电阻 R1 =R2 =1kΩ ,电源电动势 E=6V,两个相同的二极管 D串联在电路中 ,二极管 D的 ID-UD 特性曲线如图2所示 ,试求 :( 1)通过二极管 D的电流 .( 2 )电阻 R1 消耗的功率 .图 1 图 2分析 这道题是第十六届中学生物理竞赛预赛试题的第六题 ,而
The problem is shown in Figure 1. The resistance R1 = R2 = 1kΩ and the power EMF = 6V. Two identical diodes D are connected in series. The ID-UD characteristic curve of the diode D is shown in Figure 2. ) The current through the diode D. (2) The power consumed by the resistor R1. Figure 1 Figure 2 Analysis of this question is the sixth question of the 16th secondary school physics contest preliminaries, and