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2.7 Source Transformations A method called Source Transformations will allow the transformations of a voltage source in series with a resistor to a current source in parallel with resistor. The double arrow indicate that the transformation is bilateral, that we can start with either configuration and drive the other

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Equating we have, Voltage source with a series resistor Current source with a parallel resistor

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Polarity of V s in one form must be such that it tends to push in the direction of I s in the other form

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Ex. 2.29: Determine i and i x using source transformation Single loop i x should be found from the original circuit KVL

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Ex 2.30: Determine I and V Transform the 3V in series with the 2 Ohm resistor We get a single-node-pair circuit Using Ohm’s law in the original circuit:

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Example (a) find the power associated with the 6 V source (b) State whether the 6 V source is absorbing or delivering power We are going to use source transformation to reduce the circuit, however note that we will not alter or transfer the 6 V source because it is the objective.

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It should be clear if we transfer the 6V during these steps you will not be able to find the power associated with it

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