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Download Here, use many source transformations to convert - Rose
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Here, use many source transformations to convert the circuit to Thévenin form. Thévenin is a voltage source in series with a resistor. Most of the middle section is in series. So convert the left side into its equivalent voltage source in series with a resistor. Its voltage will be the product of the current and resistance. Place the transformation into the circuit. Now we have three voltage sources and resistors in series. Put the resistors next to each other. Place the voltage sources next to each other, as well. So the three sources and resistors are in series. Combine the resistors by adding their resistances. We can combine the voltages into a single voltage source. Notice that all of the plus signs are on the top of the sources, so we can simply add the values together. Convert the left side into a current source form. Use the same resistance, and the current will be voltage divided by resistance. Convert the right side into its current source form as well. Going through the step-by-step transformation as below is helpful for keeping directions correct. Now all of our elements are in parallel. Swap the position of the middle devices. We have parallel current sources, and they add together. Combine the two parallel resistors by adding their reciprocals and taking the reciprocal of the result. Finally, change this into the voltage source form. Use the same resistor. The voltage will be current * resistance. This is useful because, at those terminals, we have an equivalent circuit that’s a lot simpler than the original.