如图所示，一个电荷为q的点电荷位于立方体的顶点A上，则通过侧面abcd电场强度E通量等于[img=604x539]180319a740a2154.jpg[/img]
A: [img=55x25]180319a74abd2be.png[/img]
B: [img=64x25]180319a753d5cd4.png[/img]
C: [img=64x25]180319a75cf24d2.png[/img]
D: [img=64x25]180319a764c2d5b.png[/img]
A: [img=55x25]180319a74abd2be.png[/img]
B: [img=64x25]180319a753d5cd4.png[/img]
C: [img=64x25]180319a75cf24d2.png[/img]
D: [img=64x25]180319a764c2d5b.png[/img]
C
举一反三
内容
- 0
随机变量X~N(1,4)，则P(X>2)=[img=64x25]18035b3aa6415a6.png[/img].
- 1
随机变量X~N(1,4)，则P(X>2)=[img=64x25]1803637b3a91a72.png[/img].
- 2
随机变量X~N(1,4)，则P(X>2)=[img=64x25]18039e4cd729e9c.png[/img].
- 3
随机变量X~N(1,4)，则P(X>2)=[img=64x25]18039fa03074df8.png[/img].
- 4
随机变量X~N(1,4)，则P(X>2)=[img=64x25]1803e18d306fc5c.png[/img].