SAT考试不仅考察考生的学术水平、学术能力与学术素质，同时还检测考生的学术态度。考生在参加SAT考试时，答错题目要扣分。下面新航道小编为大家具体介绍一道SAT2物理真题及其解法解析，希望对大家有所帮助。
这道SAT2物理真题相对比较简单，但是涉及到的物理知识却是比较关键的。
The set of lettered choices below refers to multiple questions. Select the one lettered choice that best answers each question. A choice may be used once, more than once, or not at all in each set.
Which graph represents the total heat developed from time
by a resistor carrying a steady current?
Answer Choices
(A)
(B)
(C)
(D)
(E)
The correct answer is A
Explanation
Difficulty: Easy
The correct answer is a steadily increasing amount. The rate of heat dissipation by a resistor is equal to the power it expends. The power is related to the currentand the resistance by the equation , so if the current is constant the power is constant. The total heat developed is then the power multiplied by the total time .
The graph is thus a steadily increasing function of time.
以上便是一道SAT2物理真题及其解法解析的相关介绍，非常详细，希望对大家有所帮助。想要了解更多关于SAT考试的信息，请多多关注新航道官网，更多关于SAT2物理真题的内容为您分享。
