Circuit Analysis

Circuit analysis is one of the most fundamental subjects in electrical engineering. Understanding how electrical circuits behave under different conditions is essential before designing, installing, or troubleshooting any system. This category covers core principles, theorems, and practical problem-solving techniques used in analyzing electrical networks.

Topics include Ohm’s Law, Kirchhoff’s Laws, network theorems, AC and DC circuit analysis, transient behavior, and practical example-based solutions. Each tutorial is structured to build step-by-step understanding, making it suitable for students as well as practicing engineers who want to strengthen their analytical skills.

To expand your knowledge, explore related Electronics Engineering tutorials for component-level understanding. You can also test your problem-solving skills through our MCQs & Practice Tests section.

Mastering circuit analysis provides the technical foundation needed for advanced subjects such as power systems, electronics, and industrial installations.

Center Tapped Full Wave Rectifier with Capacitor Filter

February 25, 2026March 10, 2019 by Gul Faraz

A center tapped rectifier converts AC voltage to a DC voltage by the means of center tap transformer and two diodes. The output DC voltage of the rectifier is half of the secondary voltage.

RLC Parallel Circuit Analysis with Solved Problem

February 23, 2026October 3, 2018 by Gul Faraz

In RLC parallel circuit, resistor, inductor, and capacitors are connected in parallel across Alternating current source. In contrast to the RLC series circuit, the voltage across each component is the same and is taken as reference in the phasor diagram.

RLC Series circuit, phasor diagram with solved problem

August 8, 2025September 27, 2018 by Gul Faraz

RLC Series Circuit Example with solution

RLC Series circuit contains a resistor, capacitor, and inductor in series combination across an alternating current source. The behavior of components can be explained by phasor diagrams, impedance and voltage triangles.

Phasor Algebra in AC circuit Analysis: Addition and Multiplication

February 23, 2026September 13, 2018 by Shahab Yousafzai

Parallelogram law for vector / phasor addition

Phasor diagram in an AC circuit analysis is to represent the phase angle i.e. leading and lagging effect through vector representation. Phasor algebra, polar form, and complex number conversions are also explained.

Power Factor in an AC circuit Explained with Power Triangle

August 8, 2025September 2, 2018 by Shahab Yousafzai

https://electric-shocks.com/wp-content/uploads/2018/09/Average-Power-in-AC-circuit-and-the-role-of-power-factor.jpg

Power Factor (PF) play an important role in average power dissipation in an ac circuit. PF leads to the concept of three different real, reactive and apparent power, which is better explained by Power triangle.

How to Calculate Impedance Triangle: Resistance and Impedance

August 8, 2025August 28, 2018 by Shahab Yousafzai

Capacitor and inductor oppose current in AC circuit because of inertia of electron motion, which is called capacitive and inductive reactance respectfully.

Difference between Alternating Current and Direct Current

August 8, 2025August 25, 2018 by Shahab Yousafzai

Alternating current (AC) is the type of electrical current which changes its direction and magnitude every moment.

Inductor Charging and Discharging in RL Circuit Analysis Equations

February 18, 2026August 20, 2018 by Shahab Yousafzai

In RL series circuit, during the inductor charging phase, the voltage across the inductor gradually decrease to zero and the current through the inductor goes to the maximum in five-times constant (5 taus).

The Voltage across the Inductor: Energy Stored in Inductor

February 23, 2026August 10, 2018 by Gul Faraz

What-is-Inductor-and-how-it-store-energy

An inductor is a passive circuit element that stores energy in the form of a magnetic field. Inductors are made of wrapped conducting wires or coils, to enhance the effectiveness of the inductor number of turns is increased. The inductance of an inductor increases with the number of turns. An inductor is not anticipated to …

How do Capacitors Add in Series: Capacitor in the Series Calculator

February 18, 2026August 6, 2018 by Gul Faraz

Capacitors can be connected in series to achieve the desired capacitance. The capacitance of series connection decreases and that of parallel connection increases.