小灯泡铭牌上的"2.5V 0.3A"的含义是?0.3A 的含义是什么?到底是额定电流还是允许通过的最大电流?那么如果在试验时测得小灯泡两端电压为2V,电流为0.25A 那么 它的额定功率为多少?如果说0.3A是额
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 07:05:48
![小灯泡铭牌上的](/uploads/image/z/4611971-11-1.jpg?t=%E5%B0%8F%E7%81%AF%E6%B3%A1%E9%93%AD%E7%89%8C%E4%B8%8A%E7%9A%84%222.5V+0.3A%22%E7%9A%84%E5%90%AB%E4%B9%89%E6%98%AF%3F0.3A+%E7%9A%84%E5%90%AB%E4%B9%89%E6%98%AF%E4%BB%80%E4%B9%88%3F%E5%88%B0%E5%BA%95%E6%98%AF%E9%A2%9D%E5%AE%9A%E7%94%B5%E6%B5%81%E8%BF%98%E6%98%AF%E5%85%81%E8%AE%B8%E9%80%9A%E8%BF%87%E7%9A%84%E6%9C%80%E5%A4%A7%E7%94%B5%E6%B5%81%3F%E9%82%A3%E4%B9%88%E5%A6%82%E6%9E%9C%E5%9C%A8%E8%AF%95%E9%AA%8C%E6%97%B6%E6%B5%8B%E5%BE%97%E5%B0%8F%E7%81%AF%E6%B3%A1%E4%B8%A4%E7%AB%AF%E7%94%B5%E5%8E%8B%E4%B8%BA2V%2C%E7%94%B5%E6%B5%81%E4%B8%BA0.25A+%E9%82%A3%E4%B9%88+%E5%AE%83%E7%9A%84%E9%A2%9D%E5%AE%9A%E5%8A%9F%E7%8E%87%E4%B8%BA%E5%A4%9A%E5%B0%91%3F%E5%A6%82%E6%9E%9C%E8%AF%B40.3A%E6%98%AF%E9%A2%9D)
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