您所在的当前位置：高中物理试题 >

电磁感应

> 图中T是绕有两组线圈的闭合铁心,线圈的绕向如图所示,D是理想的二极管,金属棒ab可在两条平行的金属导轨上沿导轨滑行,磁场方向垂直纸面向里.若电流计G中有电流通过,则ab棒的运动可能是 A．向左匀速运动 B．向右匀速运动 C．向左匀加速运动 D．向右匀减速运动

问题：

发布时间：2024-09-11

图中T是绕有两组线圈的闭合铁心,线圈的绕向如图所示,D是理想的二极管,金属棒ab可在两条平行的金属导轨上沿导轨滑行,磁场方向垂直纸面向里.若电流计G中有电流通过,则ab棒的运动可能是

A．向左匀速运动 B．向右匀速运动

C．向左匀加速运动 D．向右匀减速运动

参考答案：

提问用户：4M***52N

可能感兴趣的题目：

1 最近，我国有科学家采用铝埋藏测年法的技术手段测定：北京猿人生活在约七十七万年前。此前，根据其他测年法，学术界采信“四五十万年前”的说法。上述考古研究情况表明 [ ] ①有限的实践活动对认识真理性的检验在一定程度上具有局限性 ②专家公认的检验手段和考古结论具有更高的可靠性 ③不同的考古实践手段必然得出不同的考古结论 ④不同考古结论应不断接受新的考古实践的再检验 A、①② B、②③ C、③④ D、①④
2 As the first woman Chancellor(总理) in German’s history, Angela Merkel topped Forbes magazine’s list of “The World’s 100 Most Powerful Women” in 2006, 2007, 2008, and 2009.She has even been compared to Margaret Thatcher and many people called her “Iron Lady”． Merkel was born in Hamburg, West Germany, on July 17, 1954.Six weeks after she was born, her family moved to Templin. As a small child, Merkel quickly learned to speak but took longer to walk. “I was a stupid person when it came to moving？” Merkel said. “A normal person could do something naturally, but I had to think about it in my mind and practice.” As a teenager, she was the top student and graduated from high school with perfect marks. In 1973, Merkel went to the University of Leipzig, where she studied physics. At 32, she got her doctor’s degree in physics. She stepped_ into_ politics in 1989.In her first big political job as Minister for the Environment in 1994, her scientific background and strong will proved very useful. In 2005 she became Germany’s Chancellor. She has been reelected to a second term as German Chancellor on September 27, 2009. Through her political career, Merkel’s persistence (坚持) and patience helped her a lot. “She’s bright and openminded,” said Hubert Markl. “She is the person who wants to know exactly what is going on, and how never giving up will influence our society and future.”As a small child, Merkel was slow in ______.The underlined phrase in Paragraph 3 most probably means “______”．We can infer from the passage that Angela Merkel ______.In the last paragraph the author mainly wants to express ______.What’s the author’s attitude toward Angela Merkel? speaking,walking,learning,thinking,speaking,walking,learning,thinking,fought the government,began her scientific career,offered political guidance,became a government official,fought the government,began her scientific career,offered political guidance,became a government official,is a powerful woman with a strong will and determination,got her doctor’s degree in politics in University of Leipzig,has worked as German Chancellor since Sep.27, 2009,showed her best talent as Minister for the Environment,is a powerful woman with a strong will and determination,got her doctor’s degree in politics in University of Leipzig,has worked as German Chancellor since Sep.27, 2009,showed her best talent as Minister for the Environment,one must be brave in the political career,one should be patient when making decisions,persistence can help one’s dream come true,one can have a strong will when others haven’t,one must be brave in the political career,one should be patient when making decisions,persistence can help one’s dream come true,one can have a strong will when others haven’t,Admiring,Thankful,Pitiful,Dull,Admiring,Thankful,Pitiful,Dull
3 2014 年1月15日美元对人民币汇率为l美元=6.1005元，而去年同期美元对人民币汇率为1美元="6.2691" 元。人民币对美元汇率的这种变化对我国进出口的影响是（图中虚线表示变化后的状况） A．①② B．①④ C．②③ D．③④
4 下列实验装置图所示的实验操作，不能达到相应实验目的的是
5 At five he was collecting old newspapers to make money.And when he was fifteen he signed his schoolmates up to start a baby-sitting circle(保姆中心). Now 20,third- year Cambridge University student,Peter Blackburn is the managing director of company with a 30,000 pounds plan.And he thinks he will make more than $15,000 by next summer. He set up Peter Blackburn Company last year to bring out a new color term-planner(学期计划)that now students all over the UK are using. “I felt that most of the planners going around were pretty unimaginative,”he says.”I believed that I could do a better job and decided to have a go.” Blackburn agrees that he is putting far more effort into business than his computer studies course at university.While fellow students are out with their friends,he keeps in touch with his business office in Lancashire by mobile phone.Before he set up the company he spent one holiday preparing a plan that would persuade the bank to lend him money. “Most students work hard for a good degree because they believe that will help them get a job to support themselves,”he says.”I work hard at my company,because that is what will support me next year,after I leave college.” Friends believe that Blackburn will make one million pounds within five years. He is not quite so sure,however.”There is a lot to be done yet,”he saysWhen he was quite young,Blackburn______.The underline expression in the fourth paragraph “have a go”means______.Which of the following best explains why Blackburn works hard at his company?Choose the right order of the facts given in the passage. a.He spent his holiday preparing a plan. b.He collected newspapers. c.He set up his own company. d.He asked the bank for money e.He set up a baby-sitting circle already made a lot of money,already had a business brain,was already a managing director of a company,already set up his own business,already made a lot of money,already had a business brain,was already a managing director of a company,already set up his own business,give up his job and have a new one,leave the company,have a try,develop my business quickly,give up his job and have a new one,leave the company,have a try,develop my business quickly,He wants to do more business practice before he leaves college,He wants to make more money before he leaves college,He wants to get a good job like most students after he leaves college,He depends on the company for his living in the future,He wants to do more business practice before he leaves college,He wants to make more money before he leaves college,He wants to get a good job like most students after he leaves college,He depends on the company for his living in the future,e,b,c,a,d,b,e,a,d,c,b,e,d,a,c,b,e,c,a,d,e,b,c,a,d,b,e,a,d,c,b,e,d,a,c,b,e,c,a,d
6 亲身实践是获得知识的惟一途径。 [ ]
7 【题文】 ________．
8 【题文】依次填入下列词句横线处的词语，最恰当的一组是；（1）时下，概括中国教育病症最流行的______莫过于“应试教育”。（2）你们这样对待远道而来的客人，________太不礼貌了吧。（3）外交部发言人表示中国海监船进入钓鱼岛海域活动_______。 A．词语不免无可厚非 B 词汇不免无可厚非 C．词语未免无可非议 D．词汇未免无可非议
9 根据以下材料回答问题。 材料一　2002～2005年中国经济增长与能源消费 材料二　目前，我国经济增长中存在高投入、高产出、高能耗、高污染的现象。能源紧张、环境污染严重等问题成为全社会关注的焦点。为此，《中华人民共和国国民经济和社会发展第十一个五年规划纲要》把建设资源节约型、环境友好型社会摆在突出位置。 （1）分析上图显示的经济信息。 （2）结合材料一、二,运用经济常识分析在建设资源节约型、环境友好型社会的过程中,企业应该采取的措施。（3）在经济增长的同时要注意能源节约和环境保护，这是实现可持续发展的重要要求。试运用客观规律性与主观能动性关系的原理加以说明。
10 【题文】下列说法中正确的是（） A．常温下，某难溶物的Ksp为2.5×105 B．镀铜铁制品镀层受损后，铁制品比受损前更容易生锈 C．NH3·H2O溶液加水稀释后，溶液中的值增大 D．常温下，pH均为5的盐酸与氯化铵溶液中，水的电离程度相同