1.单选题- (共7题)





A.接通S的瞬间,![]() ![]() |
B.接通S的瞬间,![]() ![]() |
C.接通S的瞬间,![]() ![]() |
D.接通S的瞬间,![]() ![]() |

A.一电子飞到通电导线正下方时,将做速度不断减小的曲线运动 |
B.条形磁铁靠近干簧管时,管内两个簧片相对部分因形成相反的磁极而吸合 |
C.当条形磁铁靠近水平桌面上的闭合铝圈时,铝圈对桌面压力将增大,且有扩张趋势 |
D.条形磁铁放在水平桌面上,其上方一根直导线通电后,桌面受到的压力将减小 |

A. 感应电流方向相同,感应电流所受作用力的方向相同
B. 感应电流方向相反,感应电流所受作用力的方向相反
C. 感应电流方向相反,感应电流所受作用力的方向相同
D. 感应电流方向相同,感应电流所受作用力的方向相反

A.![]() | B.![]() | C.![]() | D.![]() |


A.A1读数增大,A3读数减小 |
B.A1读数增大,A2读数增大 |
C.A1读数减小,A3读数不变 |
D.A1读数减小,A3读数增大 |

A.1:2 2U |
B.1:2 4U |
C.2:1 4U |
D.2:1 2U |
2.选择题- (共4题)
根据短文理解完成下列各题。
C
Shenzhen is a city in South China. It is not very big, but it has attracted people of the whole country and the whole world as well.
Just about twenty years ago, it was only a small fishing village. There were not many people there. Most of them lived on fishing. Things have greatly changed since the 1980's. It became the first special economic zone (经济特区) in China.
Because of the opening policy(政策), economic changes between China and the outside world have increased greatly. People can come and go easily between Shenzhen and Hong Kong. Both foreigners and Chinese have built a lot of factories, companies and tourists' attractions there. People all over the country have come to find jobs. Many of them have settled down in this new booming(兴起的) city.
Shenzhen is developing so fast that it has become a well-known metropolis(大都市) in China.
3.多选题- (共3题)

A.保持Q的位置不动,将P向上滑动时,电流表读数变大 |
B.保持Q的位置不动,将P向上滑动时,电流表读数变小 |
C.保持P的位置不动,将Q向上滑动时,电流表读数变大 |
D.保持P的位置不动,将Q向上滑动时,电流表读数变小 |

A.空间存在的磁场方向竖直向下 |
B.导体棒向右做匀加速运动 |
C.当导体棒向右运动的速度达到最大时,电容器的电荷量为零 |
D.导体棒运动的过程中,通过导体棒的电荷量Q<CE |







A.在![]() |
B.闭合电路中感应电动势的瞬时表达式![]() |
C.从t=0时刻到![]() ![]() |
D.从t=0时刻到![]() ![]() |
4.填空题- (共2题)


5.解答题- (共3题)

(1)棒到达最低点时金属棒两端的电压;
(2)棒下滑过程中金属棒产生的热量;
(3)棒下滑过程中通过金属棒的电荷量。






(1)写出从图示位置开始计时线圈中感应电动势的瞬时值表达式;
(2)电阻R在0.05 s内产生的热量;
(3)0.05 s内流过电阻R上的电量(设线圈从垂直中性面开始转动)。
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【1】题量占比
单选题:(7道)
选择题:(4道)
多选题:(3道)
填空题:(2道)
解答题:(3道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:2
5星难题:0
6星难题:9
7星难题:0
8星难题:2
9星难题:2