本题目来源于试卷: DC Circuits，类别为 IB物理学
[问答题]
If all you have is a 120-V line, would it be pon 6-x9b )rscbfssible to ligh n w99251g* 0otuflph vg5j3ort ;noynt several 6-V lampsgh3r *f jot9onv 5t1ng9yo wln;5 u02p without burning them out? How?
参考答案:
If 20 of the 6-V lamps were
connected in series and then connected to the 120 V line, there would be a
voltage drop of 6 V for each of the lamps, and they would not burn out due to
too much voltage. Being in series, if
one of the bulbs went out for any reason, they would all turn off.
本题详细解析:
暂无
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