春节、元宵节、五一节、国庆节等节日里,我们经常可以看到公园里和街道上装饰着一串串五光十色的彩灯。如果从彩灯串中取下一只小彩灯,整串彩灯将不会发光,这似乎表明各只小彩灯是串联的。但是,在实际使用中,很可能出现一串彩灯中有一只灯丝烧断,而我们看到的却并不是这串彩灯立刻陷入黑暗,而是其他小彩灯却仍然可以发光,这似乎表明各小彩灯是并联的。那么,在彩灯 Spring Festival, Lantern Festival, May Day, National Day and other festivals, we can often see the park and the streets decorated with a string of colorful lights. If you remove a small lantern from the lantern string, the entire lantern will not glow. This seems to indicate that the lanterns are connected in series. However, in actual use, it is quite possible that one of a bunch of lanterns will blow off, and what we have seen is not that the lanterns are immediately plunged into darkness but that other little lanterns can still emit light. This seems Show that the small lantern is in parallel. Well, in lantern