网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
已知图中，Us=10V，i1=2A,R1=4.5,R2=1,求i2。（教材P30 1-18（2))
参考答案和解析
× (1)I=6-5=1(A)(2)I1=6+12=18(A)I2=15+I=15+1=16(A)I3=I1-I2=18-16=2(A)故US=Uab+Ubd=3I1+12I3=3×18+12×2=78(V)(3)因为15R-12I3+1×I2=0即15R-24+16=0所以R=(24-16)/15=8/15(Ω)
更多 “已知图中，Us=10V，i1=2A,R1=4.5,R2=1,求i2。（教材P30 1-18（2))” 相关考题
考题
已知r1,r2是实型变量,i1,i2是整型变量,下列中错误的赋值语句是( )。
Ai2:=i1*i2 div i1Bi1:=i1/i2Cr2:=3/5*sqr(r1*r2)Dr1:=r2/i1
考题
两电阻相并联，已知R1/R2=1/2，则流入电阻的电流之比I1/I2、功率之比P1/P2分别是（）。A、I1/I2=2，P1/P2=2B、I1/I2=2，P1/P2=4C、I1/I2=1/2，P1/P2=1/2D、I1/I2=2，P1/P2=1/4
考题
单选题A company uses Routers R1 and R2 to connect to ISP1 and ISP2, respectively, with Routers I1 and I2 used at the ISPs. R1 peers with I1 and R2; R2 peers with I2 and R1. Assuming as many default s ettings as possible are used on all four routers, which of the following is true about the next - hop IP address for routes R1 learns over its iBGP connection to R2?（）A
The next hop is I2's BGP RIDB
The next hop is I2's IP address used on the R2 - I2 neigh bor relationshipC
The next hop is R2's BGP RIDD
The next hop is R2's IP address used on the R1 - R2 neighbor relationship
考题
多选题A company uses Routers R1 and R2 to connect to ISP1 and ISP2, respectively, with Routers I1 and I2 used at th e ISPs. R1 peers with I1 and R2; R2 peers with I2 and R1. R1 and R2 do not share a common subnet, relying on other routers internal to the Enterprise for IP connectivity between the two routers. Which of the following could be used to prevent potential routing loops in this design?（）AUsing an iBGP mesh inside the Enterprise coreBConfiguring default routes in the Enterprise pointing to both R1 and R2CRedistributing BGP routes into the Enterprise IGPDTunneling the packets for the i BGP connection between R1 and R2
考题
单选题在电路中R1和R2并联，R1=2Ω，R4=4Ω，则它们电流比I1： I2=（）。A
1：2B
1：4C
2：1D
4：1
热门标签
最新试卷