1.单选题- (共7题)

A.

C. 4BωR2 D. 6BωR2

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

A.第一次磁通量变化较大 |
B.第一次G的最大偏角较大 |
C.第一次经过G的总电荷量较多 |
D.若开关S断开,G不偏转,故两次均无感应电动势 |

A.Uab=0.1 V | B.Uab=-0.1 V |
C.Uab=0.2 V | D.Uab=-0.2 V |

A.匀速滑动时,I1=0,I2=0 | B.匀速滑动时,I1≠0,I2≠0 |
C.加速滑动时,I1=0,I2=0 | D.加速滑动时,I1≠0,I2≠0 |

A.不带电 |
B.所带电荷量与t成正比 |
C.带正电,电荷量是![]() |
D.带负电,电荷量是![]() |
2.选择题- (共3题)
Life in the{#blank#}1{#/blank#}will be different from life today. Scientists will make{#blank#}2{#/blank#} (电脑) much smaller and more u{#blank#}3{#/blank#} .People will {#blank#}4{#/blank#} (工作) fewer hours than they do now and this will make life easier. Traveling will be{#blank#}5{#/blank#}cheaper and more people will go to other{#blank#}6{#/blank#} (国家) for holidays.
We will use more land to build new cities and less land for cows and sheep. Then there will{#blank#}7{#/blank#}less room for cows and sheep, so m{#blank#}8{#/blank#} will be more expensive. No one will eat {#blank#}9{#/blank#} every day. I{#blank#}10{#/blank#}we eat more fruit and vegetables, and we will become healthier.
3.多选题- (共2题)



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

A.MN向左匀速运动的过程中 |
B.MN向左加速运动的过程中 |
C.MN向右匀速运动的过程中 |
D.MN向右加速运动的过程中 |
4.解答题- (共2题)

(1)平均感应电动势;
(2)转落时,通过各电阻的平均电流.(线圈的电阻忽略不计)
-
【1】题量占比
单选题:(7道)
选择题:(3道)
多选题:(2道)
解答题:(2道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:3
7星难题:0
8星难题:6
9星难题:2