本题目来源于试卷: .Resistor.，类别为 美国物理杯赛(Physics Bowl)
[单选题]
01.10: Each member oyqo1 s /.1ywg o6ezx3p- ye7x8tte,udaa0z lweccd16w,n+00ufg 9hwf a family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number of the computers can be operating atuz9aaw0cw+wn6 e d0,g 10 lhfc the sametime?
A. 1
B. 2
C. 3
D. 4
E. 5 or more
参考答案: D
本题详细解析:
暂无
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