RLC串联交流电路中，已知总阻抗Z为[img=87x24]18031b06924b4b4.png[/img][img=13x19]18031b0699fd042.png[/img]，总电压[img=217x29]18031b06a3dbf43.png[/img]，则电路电流为（ ）。
A: [img=212x29]18031b06aeda420.png[/img]
B: [img=212x29]18031b06babbd96.png[/img]
C: [img=212x29]18031b06c5bdc24.png[/img]
D: [img=212x29]18031b06d026850.png[/img]
A: [img=212x29]18031b06aeda420.png[/img]
B: [img=212x29]18031b06babbd96.png[/img]
C: [img=212x29]18031b06c5bdc24.png[/img]
D: [img=212x29]18031b06d026850.png[/img]
举一反三
- RLC串联交流电路中，已知总阻抗Z为[img=87x24]17de8f09f14c95f.png[/img][img=13x19]17de6097bff3615.png[/img]，总电压[img=217x29]17de8f09fe21d4b.png[/img]，则电路电流为（ ）。 未知类型：{'options': ['', '', '', ''], 'type': 102}
- 已知随机变量X的分布函数为[img=136x49]1803b69024c8270.png[/img] ，则X的均值和方差分别为 A: E(X)=2, D(X)=4 B: E(X)=4, D(x)=2 C: [img=162x43]1803b6902cd8bfb.png[/img] D: [img=162x43]1803b69034d9ffd.png[/img]
- 在RLC串联电路中，已知R＝XL＝X=5Ω，[img=95x39]1803db033c7e730.png[/img]A，则电路的端电压为 A: [img=48x32]1803db03455001a.png[/img] B: [img=121x35]1803db034e1e73d.png[/img] C: [img=56x32]1803db0357384db.png[/img] D: [img=54x44]1803db0360f8207.png[/img]
- Which of the following propositions is false,set A = {x,x is an integer and[img=60x23]1803a1c6eebb7a3.png[/img]} ? ( ) A: [img=113x25]1803a1c6f77ce06.png[/img] B: [img=139x25]1803a1c7001fe79.png[/img] C: [img=51x22]1803a1c70863f61.png[/img] D: {x|x is an integer and |x| 4}[img=33x22]1803a1c711a7c63.png[/img]
- Which of the following propositions is false,set A = {x,x is an integer and [img=60x23]1803a1c503ffa04.png[/img]} ? ( ) A: [img=113x25]1803a1c50cc3162.png[/img] B: [img=139x25]1803a1c514e60ea.png[/img] C: [img=51x22]1803a1c51dd52ef.png[/img] D: {x|x is an integer and |x| <4} [img=33x22]1803a1c525cf1bd.png[/img]