<p class="ql-block"><b style="color:rgb(255, 138, 0);">一、电磁振荡</b></p><p class="ql-block"><a href="https://b23.tv/ew21H6I" target="_blank">你不得不知的高考物理易错点：电磁振荡问题</a></p> <p class="ql-block"><a href="https://v.douyin.com/l5iWvkeCGfY/%2006/06%20B@g.oD%20Nws:/" target="_blank">电池震荡过程图解q（E电）/t、I（E磁）/t</a></p> <p class="ql-block"><a href="https://v.douyin.com/r9Zr9CEaC5E/%20ytE:/%20n@d.Nw%2003/27" target="_blank">电磁振荡题解</a></p> <p class="ql-block"><b style="color:rgb(255, 138, 0);">二、磁场的知点整理</b></p><p class="ql-block"><span style="color:rgb(1, 1, 1);">磁场中的速度v和磁场B问题都可以转化为半径问题：V=mv/Bq</span></p><p class="ql-block"><span style="color:rgb(1, 1, 1);">磁场中的时间t问题可以转化为角度</span>θ问题</p> <p class="ql-block"><a href="https://v.douyin.com/pjh9RmFQGwk/%20m@D.UY%20Chb:/%2001/07" target="_blank">磁场的知识点梳理 </a></p> <p class="ql-block"><b style="color:rgb(22, 126, 251);">磁场中的三大推论妙解</b></p> <p class="ql-block">磁场推论一：β=2α</p><p class="ql-block">圆心角=速偏角=2位偏角</p> <p class="ql-block"><a href="https://v.douyin.com/9bZ8dxC5Q80/%20VYm:/%20p@q.Eu%2001/20" target="_blank">磁场推论一：β=2α，圆心角=速偏角=2位偏角</a></p> <p class="ql-block"><a href="https://v.douyin.com/Hzzmi0JSwYg/%20l@C.UY%2012/18%20teO:/" target="_blank">磁场推论一：竖偏角=2位偏角，高考题解析1</a></p> <p class="ql-block"><a href="https://v.douyin.com/FKuXnQiMjO8/%2007/05%20lPk:/%20k@C.us" target="_blank">磁场推论一：竖偏角=2位偏角，高考题解析2 </a></p> <p class="ql-block">磁场推论2：弦长公式</p> <p class="ql-block"><a href="https://v.douyin.com/k1zgv_-1SUw/%2009/19%20b@N.jc%20Xzg:/" target="_blank">磁场推论二：弦长公式解析</a></p> <p class="ql-block"><a href="https://v.douyin.com/85Eq8ayDfRE/%20m@q.eB%20Ulc:/%2005/14" target="_blank">磁场推论二：计算弦长公式高考题解析一1 </a></p> <p class="ql-block"><a href="https://v.douyin.com/aep2a3qyzOQ/%20mdN:/%2007/08%20F@u.sr" target="_blank">磁场推论二：计算弦长公式高考题解析一2</a></p> <p class="ql-block"><a href="https://v.douyin.com/kriNBwpw9uI/%20f@O.kC%20Tyt:/%2002/14" target="_blank">磁场推论二：计算弦长公式高考题解析3 </a></p> <p class="ql-block">推论三：勾股定理</p> <p class="ql-block"><a href="https://v.douyin.com/ezgQvB5cSvU/%20fbn:/%2006/02%20Y@Z.MW" target="_blank">磁场推论三：勾股定理 </a></p> <p class="ql-block"><b style="color:rgb(255, 138, 0);">磁场中的最长时间问题</b></p> <p class="ql-block"><a href="https://v.douyin.com/ODiUmVGOFA4/%20r@e.OK%2004/14%20wSL:/" target="_blank">一、速度不相等时，判断角度：圆心角越大，时间越长 </a></p> <p class="ql-block"><a href="https://v.douyin.com/2oSG-moEzDI/%20WzG:/%20H@I.II%2010/30" target="_blank">二、速度相等时，判断弦长：弦长越长，圆心角越大，时间越长</a>（前提条件是劣弧的判断）</p> <p class="ql-block"><a href="https://v.douyin.com/Wrz9Hil_jIg/%2004/30%20Oxs:/%20u@S.Lj" target="_blank">三、放缩圆问题找相切～圆心角～弦长分析</a></p> <p class="ql-block"><a href="https://v.douyin.com/xSK84lcwsRI/%20l@p.da%2001/22%20zte:/" target="_blank">磁场最长时间问题高考题解析1</a></p> <p class="ql-block"><a href="https://v.douyin.com/vyUQh99WR8I/%20zgB:/%20P@x.Sl%2006/30" target="_blank">磁场中最长时间问题高考题解析2 </a></p>