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ece140: add source trans

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eggy 2023-02-04 18:02:45 -05:00
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docs/1b/ece140.md
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@ -160,3 +160,11 @@ i=\sum i_x
$$ $$
To do so, each unused independent source should be replaced with a short circuit (voltage) or an open circuit (current). To do so, each unused independent source should be replaced with a short circuit (voltage) or an open circuit (current).
### Source transformation
In linear circuits, a voltage source in series with a resistor can be replaced by a current source in parallel to that resistor (or vice versa), so long as Ohm's law is followed for the replacement:
$$v_1=i_2R$$
The arrow of the current source must point in the positive direction of the voltage source. This can also be used with dependent sources.