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 of a family od 2)qcdspn s*( 8vi8my 7oirtxx03(hvf six owns a computer rated at 500 watts in74,+iyazc -y r7qbaiz a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maxc -i yb7i74rz+ay,qazimum number of the computers can be operating at 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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