Problem No.2 Based On Superposition | DC Circuits and Network Theorems | EXTC Engineering

TL;DR

This video explains how to apply the superposition theorem to solve a circuit with two independent sources and find the current across a 10-ohm resistor.

Transcript

friends uh today we will be doing supervision theorem again a second example towards it let's work on it a slightly different sum so let's be keen for it if you observe this network you have only two small loop looks very simple and it is very simple so let's have a look on it when i talk about supervision theorem again the same point you need to s... Read More

Key Insights

• ℹ️ The superposition theorem allows for the analysis of circuits with multiple sources by considering each source independently.
• ℹ️ Voltage sources are treated as shorts and current sources as open circuits when applying the superposition theorem.
• ❤️‍🩹 Each independent source is considered in a separate case and the resulting currents or voltages are added together at the end.
• ❓ The direction of the currents should be consistent to ensure accurate analysis using the superposition theorem.

Questions & Answers

Q: What is the basic principle of the superposition theorem?

The superposition theorem states that in a circuit with multiple sources, each source is considered independently and the effects are superimposed to find the final solution.

Q: How do you treat voltage sources and current sources in the superposition theorem?

Voltage sources are replaced with shorts (zero resistance) and current sources are replaced with open circuits (infinite resistance) when applying the superposition theorem.

Q: How many cases are considered when applying the superposition theorem to a circuit?

The number of cases depends on the number of independent sources in the circuit. For example, if there are two independent sources, two cases will be considered.

Q: How do you find the currents across specific resistors using the superposition theorem?

To find the current across a specific resistor, you need to solve the circuit for each case separately and then add the corresponding currents together. The direction of the currents should be consistent for accuracy.

Summary & Key Takeaways

• The video demonstrates the application of the superposition theorem to a circuit with three sources: one independent voltage source, one independent current source, and one dependent current source.

• The circuit is solved using two cases: one with the voltage source and one with the current source.

• The superposition theorem involves replacing voltage sources with shorts and current sources with open circuits and solving for the currents or voltages of interest.