gc textbook chapter 18 Electric Currents (id: fdd97d72f)

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

[填空题]
An 1800-W arc welder is coj,92 *cca4 7t/8r j mrwmtnghuq+g lx7 a /gg6k-x1bxfnnected to a $660-V_{rms}$ ac line. Calculate
(a) the peak voltage$\approx$    V(retain one decimal places)
(b) the peak current.    A

参考答案:
空格1: 933.4±2%  空格2: 3.9±2% 


本题详细解析:

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