Mike Krzyzewski is really a famous coach of Dream Team. She has coached north america men's basketball team for some time, that's clinched numerous medals for his country. Following Londonfl jerseys supplyn Olympic was over, Krzyzewski told The Associated Press that this game will be his final one as national coach, a job he's held for seven years. He had left open the possibility of swomen nfl jerseystaying with the team beyond the London Games, when practice on Saturday said these will be his last Olympics.When asked if he was sure, Krzyzewski didn't hesitate before again saying, "yecheap nfl jerseys wholesales," this will be his last game "If we could win it, then it might be three major championships in a row, i always do not know when that has been done because we haven't usually won http://govoriotkrito.bg/libs/nflcn08.htmthe globe championships," Krzyzewski said. "It becomes an enormous thing for the program." Whatever, he's an awesome coach. His achievement are going to be remembered by the country.cheap nfl jerseys
  • <sup id="cpttk"><center id="cpttk"><input id="cpttk"></input></center></sup>

  • <mark id="cpttk"><center id="cpttk"><dl id="cpttk"></dl></center></mark><s id="cpttk"></s>
  • <s id="cpttk"><i id="cpttk"><form id="cpttk"></form></i></s>

      1. 電磁鐵方向判斷

        2013/12/23 8:20:22      點(diǎn)擊:

        電磁鐵

        電磁鐵的磁場(chǎng)方向可以用安培定則來(lái)判斷。
        安培定則是表示電流和電流激發(fā)磁場(chǎng)的磁感線(xiàn)方向間關(guān)系的定則,也叫右手螺旋定則。
        (1)通電直導(dǎo)線(xiàn)中的安培定則(安培定則一):用右手握住通電直導(dǎo)線(xiàn),讓大拇指指向電流方向,四指指向通電直導(dǎo)線(xiàn)周?chē)帕(xiàn)方向。
        (2)通電螺線(xiàn)管中的安培定則(安培定則二):用右手握住通電螺線(xiàn)管,使四指彎曲與電流方向一致,那么大拇指所指的那一端是通電螺線(xiàn)管的N極。[1]

        国产无码在线一区二区观看,人妻av乱片aV出轨中文字幕,18禁在线永久免费观看网站,色综合无码av网站 国产性色在线视频 日韩中文字幕在线
      2. <sup id="cpttk"><center id="cpttk"><input id="cpttk"></input></center></sup>

      3. <mark id="cpttk"><center id="cpttk"><dl id="cpttk"></dl></center></mark><s id="cpttk"></s>
      4. <s id="cpttk"><i id="cpttk"><form id="cpttk"></form></i></s>