gc textbook chapter 18 Electric Currents (id: 32e76c275)

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 1200-W hair dryer is designedzyectyn )0b x l)-q8*eknr; n6fx+w6lnzv.8v for 117 V.t ;5rej3ic bx c(s-vsl+-i2 xh
(a) What will be the percentage change in power output if the voltage drops to 105 V? Assume no change in resistance.    % decrease
(b) How would the actual change in resistivity with temperature affect your answer?

参考答案: 19.5±2%


本题详细解析:

微信扫一扫，分享更方便