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  <a href="/question?tree_type=category&xd=3&chid=6" class="pointer">高中物理</a> <span>/</span> <a href="javascript:;">多選題</a> </div> <div id="cgn27di" class="m-wrap g-cw cfx"> <div id="jdq66t1" class="w fl"> <div id="2el2ha1" class="g-mn2"> <ul id="J_question_detail" > <li> <div id="2ry72r1" class="question-block"> <div id="hlttuji" class="q-mc"> <h1 class="q-tit"> 1. <a href="javascript:;" class="ques-origin " target="_self"> (2024高二上·輝南月考) </a> 如圖甲所示，正方形金屬線圈abcd固定在磁場中，線圈匝數(shù)10，磁場方向與線圈所在平面垂直，規(guī)定垂直線圈平面向里為磁場的正方向，磁感應強度B隨時間的變化關(guān)系如圖乙所示。已知正方形線框的邊長<img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmi%3EL%3C%2Fmi%3E%3Cmo%3E%3D%3C%2Fmo%3E%3Cmn%3E1.0%3C%2Fmn%3E%3Cmtext%3Em%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"> ，電阻<img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmi%3ER%3C%2Fmi%3E%3Cmo%3E%3D%3C%2Fmo%3E%3Cmn%3E5%3C%2Fmn%3E%3Cmi+mathvariant%3D%22normal%22%3E%CE%A9%3C%2Fmi%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"> ，則下列說法正確的是（　?。?p style="text-align:justify;"><img src="http://tikupic.21cnjy.com/ct20241o/10/2e/102e8b03a3a52171c6abcbfb2fab6f3f.png" width="303" height="136" style="max-width:100%;"></p> </h1> <div id="3ux7oy7" class="exam-s"> <span id="tcafvd7" class="op-item"><span id="1w71m2s" class="op-item-nut">A . </span><span id="mwpr1uc" class="op-item-meat"><img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmn%3E0%3C%2Fmn%3E%3Cmo%3E%E2%88%BC%3C%2Fmo%3E%3Cmn%3E1%3C%2Fmn%3E%3Cmtext%3Es%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">內(nèi)磁通量的變化率為<img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmn%3E10%3C%2Fmn%3E%3Cmtext%3EV%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> <span id="zy7vcxw" class="op-item"><span id="lps27ra" class="op-item-nut">B . </span><span id="a2epwvg" class="op-item-meat"><img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmn%3E1%3C%2Fmn%3E%3Cmtext%3Es%3C%2Fmtext%3E%3Cmo%3E%E2%88%BC%3C%2Fmo%3E%3Cmn%3E3%3C%2Fmn%3E%3Cmtext%3Es%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">內(nèi)線框ab邊受到的安培力大小先減小后增大</span></span> <span id="idgsj1k" class="op-item"><span id="py7vm7x" class="op-item-nut">C . </span><span id="vv86od6" class="op-item-meat"><img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmn%3E0%3C%2Fmn%3E%3Cmo%3E%E2%88%BC%3C%2Fmo%3E%3Cmn%3E1%3C%2Fmn%3E%3Cmtext%3Es%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">內(nèi)通過線框某一橫截面的電荷量為<img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3Cmtext%3EC%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;"></span></span> <span id="z7juqjz" class="op-item"><span id="2oo7nrh" class="op-item-nut">D . </span><span id="etf1ymc" class="op-item-meat">前4s內(nèi)線框中產(chǎn)生的熱量為8J</span></span> </div> </div> </div> </li> </ul> <div style="height:20px;background-color: #fff;margin-top:1px"></div>  <div class="2jr2yxi" id="J_ConnectQuestionsdBox"> </div> </div> </div> <div id="b2lgn2n" class="g-sd2">  <div 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