[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f1lzJECu3NruYZC0KaDorREd9AvZjP-W_YpkmnduYQsY":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":18,"related":19,"source":23,"type":24},[],"2023-05-07 22:04:26",8838512,[8,9,10,11],"电场中某点场强的方向,就是将点电荷放在该点所受电场力的方向","在以点电荷为中心的球面上,由该点电荷所产生的场强处处相同","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7478d07c1663fade0a6af287cbceb9d8.png\">","以上说法都不正确",{"courseId":13,"courseImg":14,"courseName":15,"workId":16,"workName":17},"2085641","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F71d2e482d2d3f8dc857329ab8e3fd919.png","大学物理（二）","5279053","大学物理（二）教程考试","下列几个说法中哪一个是正确的",[20,25,33,43,52,61,66,75,84,93],{"answer":21,"createTime":5,"id":6,"options":22,"question":18,"source":23,"type":24},[],[8,9,10,11],"v2",0,{"answer":26,"createTime":5,"id":27,"options":28,"question":31,"source":23,"type":32},[],8838513,[29,30],"对","错","受激辐射有光放大作用.()",3,{"answer":34,"createTime":5,"id":35,"options":36,"question":41,"source":23,"type":42},[],8838526,[37,38,39,40],"等势面的方向与电场方向垂直","电势梯度方向与电场强度方向相反","等势面密处电场强,稀处电场弱","电势梯度方向与电场强度方向相同","关于等势面与电势梯度,下列说法正确的是",1,{"answer":44,"createTime":5,"id":45,"options":46,"question":51,"source":23,"type":24},[],8838531,[47,48,49,50],"曲面S的电场强度通量不变,曲面上各点场强不变","曲面S的电场强度通量变化,曲面上各点场强不变","曲面S的电场强度通量变化,曲面上各点场强变化","曲面S的电场强度通量不变,曲面上各点场强变化","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe5abce39e4007d06db6f5ed291087050.png\">",{"answer":53,"createTime":5,"id":54,"options":55,"question":60,"source":23,"type":42},[],8838536,[56,57,58,59],"适用于无限长密绕螺线管","适用于单匝圆线圈","适用于一个匝数很多,且密绕的螺绕环","适用于自感系数L一定的任意线圈","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe894901112d01bad389aff0a22b41d8d.png\">",{"answer":62,"createTime":5,"id":63,"options":64,"question":65,"source":23,"type":32},[],8838547,[29,30],"利用带电粒子在磁场中运动的特征可以测量电子的荷质比",{"answer":67,"createTime":5,"id":68,"options":69,"question":74,"source":23,"type":24},[],8838558,[70,71,72,73],"B = 0,因为B1 = B2 = B3 = 0","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffcd518e34fd20722fa1a4ad81011ae41.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fea1f16bc9d7b067be1d8ede8c4f2d2ef.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F61cecc89b32230e6bcba188dc9b3cd5d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa85587c8fa0f9b4785dd8922a6335a51.png\">",{"answer":76,"createTime":5,"id":77,"options":78,"question":83,"source":23,"type":42},[],8838559,[79,80,81,82],"越高能级的能带,宽度越大","原子点阵间距越小,能带宽度越大","能带宽度与晶体包含的原子数有关","能带宽度与晶体包含的原子数无关","关于能带宽度的描述正确的是",{"answer":85,"createTime":5,"id":86,"options":87,"question":92,"source":23,"type":24},[],8838575,[88,89,90,91],"1","N","2N","N\u002F2","N个Na原子形成稳定原子团簇时,原子的3s能级分裂成多少个能级",{"answer":94,"createTime":5,"id":95,"options":96,"question":97,"source":23,"type":32},[],8838588,[29,30],"一导体圆线圈在均匀磁场中运动,能使其中产生感应电流的一种情况是线圈绕自身直径轴转动,轴与磁场方向垂直"]