## What is dependent and independent voltage source?

An independent voltage source maintains a voltage (fixed or varying with time) which is not affected by any other quantity. They are called dependent voltage (current) sources or controlled voltage (current) sources , and their usual symbols are shown in figure 1.4.

**Why do we use nodal analysis?**

We use nodal analysis on circuits to obtain multiple KCL equations which are used to solve for voltage and current in a circuit. The number of KCL equations required is one less than the number of nodes that a circuit has. The extra node may be referred to as a Page 4 reference node.

### What do you mean by dependent voltage source?

In the theory of electrical networks, a dependent source is a voltage source or a current source whose value depends on a voltage or current elsewhere in the network.

**What are examples of voltage sources?**

Nuclear, coal, natural gas, hydroelectric and wind power all use generators to generate voltage.

## Where is nodal analysis used?

We use nodal analysis on circuits to obtain multiple KCL equations which are used to solve for voltage and current in a circuit. The number of KCL equations required is one less than the number of nodes that a circuit has.

**What is the basis of nodal analysis?**

Nodal Analysis is based on the application of the Kirchhoff’s Current Law (KCL). Having ‘n’ nodes there will be ‘n-1’ simultaneous equations to solve. Solving ‘n-1’ equations all the nodes voltages can be obtained. The number of non reference nodes is equal to the number of Nodal equations that can be obtained.

### What are two types of voltage sources?

Types of Voltage Source Independent Voltage Source: They are of two types – Direct Voltage Source and Alternating Voltage Source. Dependent Voltage Source: They are of two types – Voltage Controlled Voltage Source and Current Controlled Voltage Source.