Lecture 4

Lecture 4 - 1 Find R so that V out /V in =150 How are those...

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Unformatted text preview: 1 Find R so that V out /V in =150 How are those three circuit blocks connected? Are they independent? I think so, but I am not sure. +- I 1 V in 10I 1 V R V out 10 10 +- +- 5V R R Circuit Block 1 Circuit Block 2 Circuit Block 3 2 Find R so that V out /V in =150 Will there be a current, I 21 , flowing from block 2 to block 1? +- I 1 V in 10I 1 V R V out 10 10 +- +- 5V R R Circuit Block 1 Circuit Block 2 Circuit Block 3 I 21 3 Find R so that V out /V in =150 The answer is no. A non-zero current means there will be net positive charges flowing from circuit block 2 to circuit block 1. However, there is no return path, i.e. the charge will be accumulated in block 1, and circuit block 2 will be depleted of positive charges. It may reduce the deficit by drawing current from circuit block 3, but then block 3 will be depleted of positive charges. Therefore there can not be sustained current between either block 1 and 2 or block 2 and 3....
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Lecture 4 - 1 Find R so that V out /V in =150 How are those...

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