In the examined electric circuit the currents and voltages will be computed. The **Kirchhoff’s current law** (KCL) and the **Kirchhoff’s voltage law** (KVL) will be employed.

In the examined electric circuit the currents and voltages will be computed. The **Kirchhoff’s current law** (KCL) and the **Kirchhoff’s voltage law** (KVL) will be employed.

**Capacitance** C is a one of basic parameters of electric circuits next to resistance R and inductivity L. Capacitance C is defined as relation of charge Q to voltage V → C=Q/V. The measurement unit of capacitance is Farad → [C]=1F, Farad is a derived unit of SI system. Sometimes it is essential to calculate capacitance of electrical circuit which contains a few **capacitors** in its topology, therefore, it is often said that **total capacitance** of electrical circuit is computed. Sometimes during circuits analysis a subject is to calculate the total capacitance which is seen from specific circuit’s terminals.

**Nodal analysis** is one of methods used for electrical networks analysis. **Nodal analysis** is based on Kirchhoff’s current law. Main idea of this method is to calculate electrical potentials of every node. This will allow to calculate voltages in branches since voltage is a difference of potentials. This approach has one rule which requires to assume that potential of one chosen node has be equal zero volts. Symbolically this chosen node is connected to the ground on electrical diagram.

Application of **superposition method** for simple electrical circuit. **Electrical circuit** is built from one voltage source and one current source. Main circuit will be divided into two sub-circuits because there are two sources. In the first sub-circuit current source will be the only extortion. In the second sub-circuit voltage source will be the only extortion.

**Electrical circuit** is built in specific way because **resistors** are connected in the shape similar to the letter H. They look like H brigde. It’s possible to download simulation in pspice and calculation in Excel to examine circuit’s behaviour.

**Branch current method** is a basic way to calculate currents and voltages in **electrical circuits**. Branch current method uses Kirchoff’s current law (KCL) and Kirchhoff’s voltage law (KVL). A few examples in which branch current method is used are on link below

Branch current method solved examples