gc textbook chapter 18 Electric Currents (id: c52020804)

本题目来源于试卷: gc textbook chapter 18 Electric Currents，类别为 IB物理学

[填空题]
A 2200-W oven is hooked to apvuh2i6a39 ia 240-Vulg(t(qn 7e67ph5i 1eysg z)tqb aw( / source.
(a) What is the resistance of the oven?    $\Omega$
(b) How long will it take to bring 120 mL of 15$^{\circ}\,C$ water to 100$^{\circ}\,C$ assuming 75% efficiency?    s
(c) How much will this cost at $11 cents/kWh?$    cents

参考答案:
空格1: 26.18±2%  空格2: 25.88±2%  空格3: 0.17±2% 


本题详细解析:

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