题干

用精确实验可以得到如下数据:如图,将检验电荷q放入带电体A产生的电场中的a点,发现其受到的电场力大小为F;若检验电荷电量变为2q,则受到的电场力大小变为2F,若检验电荷量变为3q,则受到的电场力大小变为3F….通过这一现象,可以发现电场中同一个点处,
F
q
的值是____.若将检验电荷放在电场中不同位置,则这个比值是____的.而且电场越强,这个比值越____,所以我们将这个比值定义物理量____,用来定量描述电场本身性质.
上一题 下一题 0.0难度 选择题 更新时间:2019-01-02 09:00:36

答案(点此获取答案解析)

相同,不同,大,电场强度

同类题4

任务型阅读

    When people have a choice of whom to work with, likability can sometimes matter a little bit; more than ability, said Tiziana Casciaro, an associate professor at the University of Toronto's Rotman School of Management,who researches likability in the workplace____ . These strategies can help:

    ____

    You can induce a sense of similarity with almost anybody by finding things you have in common. They may not be apparent right away, so be observant. Great salespeople do this all the time by studying potential customers for bits and pieces of their lives they can relate to.

    Like someone and they'll like you right back

    ____ Flattery (奉承)can convey fondness, but she doesn't recommend using the fake kind, even though it may work. Casciaro said, u Flattery' that is completely made up is exhausting and morally blameworthy. Instead, let a praise come from a real place____ For instance,I really appreciate what you did yesterday.

    When you give people praises, it goes a very long way towards their liking you back.

    Be a familiar presence

    Humans like things that are familiar, so just seeing you around in person makes you more likable to others. “This concept gives a whole new meaning to the idea of face time,” Casciaro said____ If not, just try to talk to people as much as possible in person during work hours, she advised You want to maximize rich interactions and cut down on the drier ones, like texts and phone calls. Be sure to be seen.

A. Ask a lot of questions.

B. See the positive in a person and express it to him.

C. People like to guess what others think about them.

D. What can you do to increase your chances of being liked?

E. Find the common points that link you with another person.

F. It's almost irresistible that we like people who seem to like us.

G.Go to after-work drinks if you have time and you would find the outing enjoyable.