| 1 | 16 |
| U2 |
| R |
| U2 |
| R |
| U2 |
| R |
| P额 |
| U额 |
| 9W |
| 12V |
| U额 |
| I额 |
| 12V |
| 0.75A |
| P1 |
| P′1 |
| I21×0.25R1 |
| I22×R1 |
| I1 |
| I2 |
| 1 |
| 4 |
| 1 |
| 1 |
| I1 |
| I2 |
| 2 |
| 1 |
| I1 |
| I2 |
| R1+R2 |
| 0.25R1+R2 |
| 2 |
| 1 |
| UL2 |
| RL |
| UL2 |
| 16Ω |
| 1 |
| 16 |
| UL |
| RL |
| U1 |
| R1 |
| 3V |
| 16Ω |
| 9V |
| R1 |
| 1 |
| 2 |
| 1 |
| 2 |
| U |
| R |
| 12V |
| 24Ω+48Ω |
| 1 |
| 6 |
| 1 |
| 6 |
| 2 |
| 3 |
| U2 |
| R |
| (12V)2 |
| 24Ω |
| 2 |
| 3 |
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