题目内容
如图所示的电路总电阻R与R1与R2的关系:
=
+
,则R=______.
| 1 |
| R |
| 1 |
| R1 |
| 1 |
| R2 |
| 1 |
| R |
| 1 |
| R1 |
| 1 |
| R2 |
| R2+R1 |
| R1R2 |
∴R=
| R1R2 |
| R1+R2 |
故答案是:
| R1R2 |
| R1+R2 |
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相关题目
| 1 |
| R |
| 1 |
| R1 |
| 1 |
| R2 |
| A、R1=45Ω,R2=15Ω | ||||
| B、R1=24Ω,R2=8Ω | ||||
C、R1=
| ||||
D、R1=
|
题目内容
| 1 |
| R |
| 1 |
| R1 |
| 1 |
| R2 |
| 1 |
| R |
| 1 |
| R1 |
| 1 |
| R2 |
| R2+R1 |
| R1R2 |
| R1R2 |
| R1+R2 |
| R1R2 |
| R1+R2 |
| 1 |
| R |
| 1 |
| R1 |
| 1 |
| R2 |
| A、R1=45Ω,R2=15Ω | ||||
| B、R1=24Ω,R2=8Ω | ||||
C、R1=
| ||||
D、R1=
|