什么是当前
电流是电荷在导体中的流动。它是电荷移动速度的量度，通常用以下单位表示 安培 (A).电流是由电位差或电压差产生的，电压差为电子运动提供驱动力。
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- 占用（自動開/自動關）
- 12–24V 直流（10–30VDC），最大 10A
- 360° 覆蓋範圍，直徑 8–12 米
- 延遲時間 15 秒–30 分鐘
- 光感測器關/15/25/35 Lux
- 高/低感度
- 自动开启/自动关闭占用模式
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- 100V-230VAC
- 傳輸距離：最多20米
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- 有線控制
- 電壓：2x AAA 電池 / 5V DC (Micro USB)
- 日/夜模式
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电流可以用一个装满球的长管的例子来形象化。当推动管子一端的小球时，另一端的小球几乎立即被推动，尽管小球都没有明显移动。这代表了电路中的电荷流动，一个电子的移动会引起连锁反应，导致电荷在整个电路中传播。
常見問題
电流越大是否意味着灯泡越亮
不，灯泡的亮度是由其功率决定的，其计算公式为 P = I2R.因此，灯泡的亮度受电流和电阻的影响。
电压和电流有何区别
电压又称电动势，指单位电荷的能量。简单地说，电压代表两个特定点之间的电势差。另一方面，电流表示电荷流动的速度。
