不论任何原因使通过回路的磁通量发生变化时,回路中产生的感应电动势与磁通量对时间的变化率成正比。
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产生动生电动势的非静电力是洛伦兹力,产生感生电动势的非静电场力是涡旋电场力。
A. 对
B. 错
一对共轭调和函数的乘积仍为调和函数. ( )
A. 对
B. 错
Question 1[音频]
A. Female and male managers are equally welcome.
B. There is an increasing gender gap in the business field.
C. A small number of people would choose a female boss.
D. Nearly half of the respondents would choose a male boss.
Question 2[音频]
A. Male bosses are less biased.
B. Male bosses are more emotional.
C. Male bosses will speak their mind.
D. Male bosses are more competitive.