一空气平行板电容器,极板面积为S,两极板相距为d,电容器两端电压为U,若将厚度为d/2的金属板平行插入电容器内,保持电压U不变,则极板上电量增加Δq为 [img=300x132]180391019b9c79c.jpg[/img]
A: [img=53x50]18039101a924826.jpg[/img]
B: [img=74x52]18039101b74e49d.jpg[/img]
C: [img=62x52]18039101c520cbe.jpg[/img]
D: 0
A: [img=53x50]18039101a924826.jpg[/img]
B: [img=74x52]18039101b74e49d.jpg[/img]
C: [img=62x52]18039101c520cbe.jpg[/img]
D: 0
举一反三
- 一空气平行板电容器,极板面积为S,两极板相距为d,电容器两端电压为U,若将厚度为d/2的金属板平行插入电容器内,保持电压U不变,则极板上电量增加Δq为 ( )[img=300x132]1803c3a0b5ead73.jpg[/img] A: [img=53x50]1803c3a0bdb0688.jpg[/img] B: [img=74x52]1803c3a0c8b79b4.jpg[/img] C: [img=62x52]1803c3a0d133a85.jpg[/img] D: 0
- 一空气平行板电容器,极板面积为S,两极板相距为d,电容器两端电压为U,若将厚度为d/2的金属板平行插入电容器内,保持电压U不变,则极板上电量增加Δq为 ( )[img=300x132]1803b1c9aa30398.jpg[/img] A: [img=53x50]1803b1c9b6ec550.jpg[/img] B: [img=74x52]1803b1c9be7212b.jpg[/img] C: [img=62x52]1803b1c9c67c406.jpg[/img] D: 0
- 一空气平行板电容器,极板面积为S,两极板相距为d,电容器两端电压为U,若将厚度为d/2的金属板平行插入电容器内,保持电压U不变,则极板上电量增加Δq=[ ] A: [img=41x44]18035e968da652e.png[/img] B: [img=52x44]18035e9696281fa.png[/img] C: [img=41x44]18035e969e43ff1.png[/img] D: [img=41x44]18035e96a6b0b21.png[/img]
- 一平行板电容器,极板面积为S,两极板相距d,现在两极板间平行插入一块相对介电常数为εr的电介质板,介质板厚度为2/3d,该电容器的电容C为( )[img=201x97]1803c3a088383e1.jpg[/img] A: [img=119x55]1803c3a093f5757.jpg[/img] B: [img=117x54]1803c3a09f1b8b0.jpg[/img] C: [img=111x48]1803c3a0a942593.jpg[/img] D: [img=108x49]1803c3a0b49f3d9.jpg[/img]
- 一平行板电容器,极板面积为S,两极板相距d,现在两极板间平行插入一块相对介电常数为εr的电介质板,介质板厚度为2/3d,该电容器的电容C为[img=201x97]180391016a76857.jpg[/img] A: [img=119x55]1803910175c9915.jpg[/img] B: [img=117x54]18039101813342e.jpg[/img] C: [img=111x48]180391018bdd2b6.jpg[/img] D: [img=108x49]18039101978053f.jpg[/img]