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 des2 ts9g7 h -x9gbofs4emdg:sb7h4d q2 fignpd ps,1zr:m)n ed for 117 V.
(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%


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