Series & Parallel Lamp Board 串聯並聯燈泡台比較板
To compare series and parallel lamp connection , their different brightness and efficiency , 100W 40W each of 2 ., 220V AC operated
中學實驗必修的課題，究竟串聯並聯的燈泡那一夥較亮；那一種組合較可靠、那一種組合較安全；同一電路裝上40W和100W的電燈炮時，燈泡的光亮程度又有何分別? 串聯並聯燈泡台比較板 尺寸255 x 180 x 50mm
附屬燈泡100W 40W 各2 AC電源使用。
Item no : JP 120-550