Basics 2 min read
Inductance calculation from physical dimension of coil
A general formula for the inductance of a coil can be found by using an equivalent Ohm’s law for magnetic…
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Basics 3 min read
Study of DC transients in R-L and R-C circuits
So far we have considered dc resistive network in which currents and voltages were independent of time. More specifically, Voltage…
Basics 3 min read
Maximum Power Transfer Theorem
In an electric circuit, the load receives electric energy via the supply sources and converts that energy into a useful…
Basics 2 min read
The procedure for applying Thevenin’s theorem
To find a current through the load resistance (as shown in fig.(a)) using Thevenin’s theorem, the following steps are followed: (a) Step-1: Disconnect…
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…
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…