[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fPXNn4d3PubBW8c_eW-vNf0zVjuEXLfVFkRbqMWix3YY":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2023-06-13 19:24:34",62666126,[8,9,10,11],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb82d05fee7072c9b16335e7e6194c089.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F83c345e37cbcdc26f14713aba9163f64.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5f07252711a737c056c2b2a7d5fee92f.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F05a343faa3871ae301a8db6ac0242997.png\">",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},12,"a99ec330bfbef6ed54fa3719b1f6515f","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffaf9d1d95d21cc789e9f9162f2623a1f.png","2023年春季学期-大学物理1","exam_96774626","大物H-第三次阶段测试-2023","如图所示,半径为R的均匀带电球面,总电荷为Q,设无穷远处的电势为零,则球内距离球心为r的P点处的电场强度的大小和电势为: \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F759d16f2d0deafc8ecf38c46c5b12b3f.png\">",[21,26,35,44,53,62,71,80,89,97],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],62666127,[30,31,32,33],"1.28 N","0.32N","0.64 N","0.16 N","如图一通有0.75 A电流的导线被弯成半径为0.5 m的1\u002F4圆弧,放在磁感强度为1.2 T的均匀磁场中,则载流导线ab所受磁场的作用力的大小为: \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F868ef1c4857c6482da7c7f675b7fb554.png\">",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],62666128,[39,40,41,42],"2πER2","πER2\u002F2","πER2","0","一电场强度E的均匀电场,E的方向与沿x轴正向,如图所示.则通过图中一半径为R的闭合半球面的电场强度通量为: \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F779d3ec66f66bc2a8e16565f65f891f0.png\">",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],62666129,[48,49,50,51],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0859b0e7015f6a3ffb83d1e5c3c48fa3.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcb6eaf146ddc9994995213a447c2ac5b.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2a878e71867ffb6e0b0c29a532ba5062.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7b7b9264d1fb44568aff751e6a076299.png\">","一半径为R的均匀带电球面,其电荷面密度为σ.若规定无穷远处为电势零点,则该球面上的电势U为",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":24,"type":25},[],62666130,[57,58,59,60],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff9d3df084da0d4fff2fe21963afebbf8.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F06e7081950ecc6d85393e407136cea8e.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fea4ab968812661d91210b96b1eb554d3.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F10d63c79425a60effa5c9c46d29e9dfa.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7d1f3a6a1bcfb5c104006f77ccfc6559.png\"> \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc483b526276d43c1461b92506cebad70.png\">",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":24,"type":25},[],62666131,[66,67,68,69],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F39187fc94f900f283d227595ee212819.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7db78ae5814116e84987ce9c348c64a8.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F66f117d95a12f86896bfabf91ff307d3.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa7ea8402775c96cbfd5d72ca97e2ae8e.png\">","如图所示,一条无限长直导线载有电流I,在离它d远的地方的长b宽l的矩形框内穿过的磁通量为 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1e8b72535c0661f504173a4ca3437743.png\">",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":24,"type":25},[],62666132,[75,76,77,78],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbff2b0230972ab139d531e642b8ae9ec.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6d61bb3ce82224f464a16f2dc6226bf3.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc869381d23916011f152b09d2060978c.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fdee7c98d49ab0d631cf739b505600cb4.png\">","半径为r的均匀带电球面1,带有电荷q,其外有一同心的半径为R的均匀带电球面2,带有电荷Q,则此两球面之间的电势差为",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":24,"type":25},[],62666133,[84,85,86,87],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F542f26f1ce2f8c210233207243de8374.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F40e9f6d0ccc98ca970816bc1b6ae8f16.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F04828aa532ff13febb62bafd39df6544.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8e0dcb941fd729454888063ac54a6670.png\">","如图所示,用均匀细金属丝构成一半径为R的圆环 C,电流I由导线1流入圆环A点,并由圆环B点流入导线2.设导线1和导线2与圆环共面,则环心O处的磁感强度大小为______,方向__________. \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4a31e0a8ba73aa3d17a25da541f54b33.png\">",{"answer":90,"createTime":5,"id":91,"options":92,"question":96,"source":24,"type":25},[],62666134,[42,93,94,95],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffe83253011e2b836b0e389573ce374be.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F66c18d07c712fc3712d93d3b57cef3d7.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4380ca38b63d8b96c5f44ec7168e5f2a.png\">","如图所示.试验电荷q,在点电荷+Q产生的电场中,沿半径为R的整个圆弧的3\u002F4圆弧轨道由a点移到d点的过程中电场力作功为 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fffb9cb6c7c6c6f5cd3ed79ea951f3e1e.png\">",{"answer":98,"createTime":5,"id":99,"options":100,"question":105,"source":24,"type":25},[],62666135,[101,102,103,104],"q,-3q","-q,-q","-q,-2q","q,-q","两同心导体球壳,内球壳带电荷+q,外球壳带电荷-2q.静电平衡时,外球壳内表面和外表面电荷分布分别为: \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F60d19f06822353617c1592a22544fbd9.png\">"]