Find the thvenin equivalent this circuit over what portions
182 | C H A P T E R |
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e x e r c i s e 3.21
a) Write in standard form the minimum number of node equations needed to analyze the circuit in Figure 3.122.
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v | R1 | R2 | i4 | R4 | |||
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R3 |
e x e r c i s e 3.22
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a) | Find the Thévenin equivalent of the circuit in Figure 3.123. | ||||||
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R3 | I | R7 | ||||||
R1 | +- | |||||||
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b) | R2 | R5 | R8 |
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R1 | R2 | 1 | ||||||
I | R4 | |||||||
R3 | 1 |
b) | I | R4 |
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1 | 183 | ||||||||
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R1 | R2 | R3 | v | + - |
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1 |
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A | |||||||||||||
I | R4 | ||||||||||||
v |
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R3 |
A′
e x e r c i s e 3.25 | a | 2 V |
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b | ||||||||
5 V | + - |
8kΩ | ||||||
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8kΩ | 0.4kΩ | 2.5mA | ||||||
e x e r c i s e 3.26 | For the circuit in Figure 3.129, write the node equations. Do |
not solve, but write in matrix form: source terms on the left, unknown variables on the right.