Basics 3 min read
Thevenin’s and Norton’s theorems in the context of dc voltage and current sources acting in a resistive network
A simple circuit as shown in fig is considered to illustrate the concept of equivalent circuit and it is always…
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Basics 2 min read
Limitations of superposition Theorem
Superposition theorem doesn’t work for power calculation. Because power calculations involve either the product of voltage and current, the square…
Basics 1 min read
Example of superposition theorem
Calculate the current flowing through the resistor 3Ω as shown in fig.(a), using the superposition theorem (a) Solution: Assume that…
Basics 2 min read
Application of superposition theorem
Consider the network shown in fig. (a). Calculate and using superposition theorem. (a) Solution: Voltage Source Only (retain one source at a…
Basics 2 min read
Superposition Theorem in the context of dc voltage and current sources acting in a resistive network
Statement of superposition theorem In any linear bilateral network containing two or more independent sources (voltage or current sources or…
Basics 2 min read
Examples ofStar (Y) to Delta (Δ) or Delta (Δ) to Star (Y) Transformation
Determine the equivalent resistance between the terminals A and B of network shown in fig.(a). (a) Solution: A ‘ Δ…
Basics 1 min read
Application of Star (Y) to Delta (Δ) or Delta (Δ) to Star (Y) Transformation
Find the value of the voltage source that delivers 2 Amps current through the circuit as shown in fig. Solution: Convert…
Basics 2 min read
Conversion from Delta (Δ) to Star or Wye (Y)
Between A & C terminals: (1) Between C B & terminals: (2) Between B & A terminals: (3) By combining…
Basics 2 min read
Wye (Y) – Delta (∆) OR Delta (∆)-Wye (Y) Transformations
There are certain circuit configurations that cannot be simplified by series-parallel combination alone. A simple transformation based on mathematical technique…
Basics 2 min read
Examples of Electric Circuit Based on Node Voltage Method
Example;1 Find the current through ‘ab-branch’ ( I ) and voltage (V ) across the current source using Node-voltage method. Solution: Using the…
Basics 3 min read
Solution of Electric Circuit Based on Node Voltage Method
In the node voltage method, we identify all the nodes on the circuit. Choosing one of them as the reference…
Basics 1 min read
Solution of Electric Circuit Based on Mesh (Loop) Current Method
Let us consider a simple dc network as shown in Figure to find the currents through different branches using Mesh…
