Thevenin's Theorem

Network Theory: Thevenin's Theorem
Topics discussed:
1) The need of Thevenin's theorem.
2) The statement of Thevenin's theorem.
3) The Thevenin's voltage.
4) The Thevenin's resistance.
5) The Thevenin's equivalent circuit.
6) Example problem demonstrating the calculation of Thevenin's voltage and the Thevenin's resistance, along with the construction of Thevenin's equivalent circuit.
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This is the best Thevenin's theorem + example video I've seen so far (I've watched half a dozen by now). Thank you for the clear and concise video! Bless you

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I’ve been studying all day and this is by far the most helpful video I’ve come across thank you so much!!!
For anyone who needs a step by step explanation this is for you

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Didi Can you please help me in understanding that why did he short circuited the voltage source but open circuit the current source ?????
Plzzz

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​@@Ppadira voltage source have internal resistance less
Current source have internal resistance near to infinity

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tbh i tried understanding Thevenin's Theorem in book it is very complicated and messy
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Why 12 and 1 ohm resistor are not parallel with series on 4
i.e (12||1)+4 ...why ,please help......

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In the last step, will we not apply Voltage divider rule?
Cause the voltage changes in series

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🎯 Key Takeaways for quick navigation:
00:00 📜 *Introduction to Thevenin's Theorem*
- Thevenin's Theorem, developed by French engineer Lyon Thevenin in 1883.
- Explains the need for Thevenin's Theorem when dealing with variable elements in a circuit and the advantages it offers in simplifying complex networks.
01:34 🔍 *Thevenin's Theorem Statement*
- Thevenin's Theorem states that a linear bi-directional two-terminal network can be replaced by an equivalent network with a voltage source (Vth) in series with a resistor (Rth).
- Describes the significance of Vth (open-circuit voltage at the terminals) and Rth (input resistance when independent sources are turned off) in the equivalent circuit.
03:19 🔄 *Example of Applying Thevenin's Theorem*
- Illustrates the application of Thevenin's Theorem using a practical circuit.
- Emphasizes the replacement of a complex network with Thevenin's equivalent circuit (Vth in series with Rth) for simplifying analysis.
08:31 📐 *Calculating Thevenin Voltage (Vth)*
- Demonstrates the steps to calculate Vth by modifying the circuit, applying nodal analysis, and determining the open-circuit voltage between terminals.
- Shows the importance of maintaining consistent polarity throughout the analysis.
10:30 🧮 *Calculating Thevenin Resistance (Rth)*
- Outlines the process of calculating Rth by turning off independent sources, modifying the network, and finding the equivalent resistance.
- Highlights the parallel and series combination of resistors in the modified network.
11:25 ⚡ *Solving Circuit with Thevenin Equivalent*
- Applies Thevenin's equivalent circuit to solve for the current flowing through a load resistor (RL) in two different scenarios.
- Shows how the simplicity of Thevenin's equivalent circuit facilitates easy calculations for varying load resistances.

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What platform used to explain?

[@abbasmohammadnumberdar1093]

why we did not use voltage divider rule to find Vx (please reply fast)

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Do we only apply the vx where there is a voltage drop?

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nice video, just a question, why Rth is not 4?

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[@gamerclash7092]

A doubt; How the $ ohm resistor and 12 ohm resistor are parallel and those are in series with 1 ohm resistor?

[@nhop3544]

I have the confusion when I solve the circuits problems ...let assume 3 resistors are in parallel and 2 resistors are in parallel suppose we solve 3 resistors which are aeries their equivalent will be ? With 2 parallel resistors I can't understand the logic

[@ericrodriguez8556]

Can someone explain to me why is i1 is (Vx-32)/4 and not (32-Vx)/4. How am I supposed to think about this with the rest of i2 & i3.

[@sakshivyas3542]

It's creating very confusion because still there is flowing of current you take v=0 and 2nd thing is that if we solve this question by mesh analysis then it gives 24volt as answer...? Plzzz clear this...