本题目来源于试卷: .Resistor.,类别为 美国物理杯赛(Physics Bowl)
[单选题]
02.46: A hotplate is designed such that it has* qu o 7q08ghhq95wecy a resistance of 12Ω when operat xynp keci8ih 695w mn()9jpb)ing at 120 volts( pk8e)hmb5 6)nijp9 nc w9yxi. What is the minimum amount of time that it would take to warm 0.45 kg of water from $15^{\circ}C$ to$85^{\circ}C$?
A. 20s
B. 26s
C. 110s
D. 180s
E. 220s
参考答案: C
本题详细解析:
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