[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fE14nj4FymQwBMKaQnWvIzI9LAIzdAFhPqfoP2t-4GF8":3},{"id":4,"source":5,"question":6,"options":7,"answer":12,"related":13,"type":24,"origin":106,"createTime":26},46872811,"v1","关于静电场,下列说法正确的是( )",[8,9,10,11],"电势等于零的物体一定不带电","电场强度为零的点,电势一定为零","同一电场线上的各点,电势一定相等","负电荷沿电场线方向移动时,电势能一定增加",[],[14,27,37,41,51,61,71,81,91,99],{"id":15,"source":5,"question":16,"options":17,"answer":22,"related":23,"type":24,"origin":25,"createTime":26},46872809,"以下说法正确的是:( )",[18,19,20,21],"只有体积很小的带电体,才能看做点电荷","等势线越密,电场强度越小","电场中A、B两点的电势差是恒定的,不随零电势点的不同而改变,所以UAB=UBA","电场线与等势面一定相互垂直,在等势面上移动电荷电场力不做功",[],[],0,null,"2023-06-05T12:08:32+08:00",{"id":28,"source":5,"question":29,"options":30,"answer":35,"related":36,"type":24,"origin":25,"createTime":26},46872810,"在真空中同一直线上的A、B处分别固定电量分别为+2Q、-Q的两电荷.如图所示,若在A、B所在直线上放入第三个电荷C,只在电场力作用下三个电荷都处于平衡状态,则C的电性及位置是( )\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F7aa4ad8bee0bfb0882bd7fab6a986c9b.jpg\">",[31,32,33,34],"正电,在A、B之间","正电,在B点右侧","负电,在B点右侧","负电,在A点左侧",[],[],{"id":4,"source":5,"question":6,"options":38,"answer":39,"related":40,"type":24,"origin":25,"createTime":26},[8,9,10,11],[],[],{"id":42,"source":5,"question":43,"options":44,"answer":49,"related":50,"type":24,"origin":25,"createTime":26},46872812,"一个点电荷,从静电场中的a点移到b点,其电势能的变化为零,则 ( )",[45,46,47,48],"b两点的场强一定相等","该点电荷一定沿等势面移动","作用于该点电荷的电场力与其移动方向总是垂直的","b两点电势一定相等",[],[],{"id":52,"source":5,"question":53,"options":54,"answer":59,"related":60,"type":24,"origin":25,"createTime":26},46872813,"在点电荷 Q形成的电场中有一点A,当一个-q的检验电荷从电场的无限远处被移到电场中的A点时,电场力做的功为W,则检验电荷在A点的电势能及电场中A点的电势分别为(规定无限远处电势能为0)( )",[55,56,57,58],"\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fe377d39b4a12bfa99d396e4e3ce7aa03.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fe7806106e325fc42e55cd931c1e6a7a4.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fd94868e01e808e76237115fae991670b.png\">","\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002Fb8ed71a7dc51f8dd95838821aa76b679.png\">",[],[],{"id":62,"source":5,"question":63,"options":64,"answer":69,"related":70,"type":24,"origin":25,"createTime":26},46872814,"在静电场中,下列说法正确的是 ( )",[65,66,67,68],"电场强度处处为零的区域内,电势也一定处处为零","电场强度处处相同的区域内,电势也一定处处相同","电场强度的方向总是跟等势面垂直的","沿着电场强度的方向,电势总是不断升高的",[],[],{"id":72,"source":5,"question":73,"options":74,"answer":79,"related":80,"type":24,"origin":25,"createTime":26},46872815,"关于同一电场的电场线,下列表述正确的是( )",[75,76,77,78],"电场线是客观存在的","电场线越密,电场强度越小","沿着电场线方向,电势越来越低","电荷在沿电场线方向移动时,电势能减小",[],[],{"id":82,"source":5,"question":83,"options":84,"answer":89,"related":90,"type":24,"origin":25,"createTime":26},46872816,"\u003Cimg src=\"https:\u002F\u002Fp.ananas.chaoxing.com\u002Fstar3\u002Forigin\u002F8d27e06611b7cb51988c2ffad9efd946.png\">某静电场的电场线分布如图所示,图中P、Q两点的电场强度的大小分别为EP和EQ,电势分别为φP和φQ,则( )",[85,86,87,88],"EP\u003CEQ,φP\u003CφQ","EP>EQ,φP\u003CφQ","EP\u003CEQ,φP>φQ","EP>EQ,φP>φQ",[],[],{"id":92,"source":5,"question":43,"options":93,"answer":96,"related":97,"type":24,"origin":25,"createTime":98},56917194,[94,46,47,95],"a、b两点的场强一定相等","a、b两点电势一定相等",[],[],"2023-06-10T15:44:10+08:00",{"id":100,"source":5,"question":101,"options":102,"answer":103,"related":104,"type":105,"origin":25,"createTime":98},56917195,"在负电荷Q的电场中,距Q为10cm的A处放一电荷,其电荷为q=+5×10-9C,q受到的电场力为1×10-8N,则A处的电场强度大小为____N\u002FC",[],[],[],2,{"courseName":107,"courseImg":108,"workName":109,"workId":110,"count":111,"courseId":112},"大学物理前导","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa846b7a6fb18eaad84b93d27f7791f62.jpg","先导课6—电场电势","work_27851989",21,"6e817bfb1d628cb8bce4a25e996cad20"]