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# Basic Electrical

## Series Circuit Characteristics

Simply defined a series circuit is a circuit that contains only one current path. For example, consider the circuits shown in Figure 1. In each case, the current generated by the voltage source has only one path, and that path contains all of the components in the circuit. In contrast, …

## Heat and Temperature Explained | Examples

Heat and temperature are different parameters. Heat is energy stored in a body, whereas temperature is the potential of that heat, just as voltage is the potential in an electric circuit. A candle flame has a temperature which is high enough to burn fingers, but a person can quickly snuff …

## Effects of Electricity

Here, we have covered five different effects of electricity in detail such as Electrostatic, Electrochemical, Heat, Magnetic, and Psychological effects. Electrostatic Effects Electrostatic effects of electricity are less common than other effects, but its uses are growing. Chimney stacks in power stations, for example, have an electrostatic generator that energizes …

## What is Fuse? | Types of Fuses and their Applications

Fuse is a component that allows current to pass under normal circumstances and opens automatically if the current exceeds a specified value. In some ways, a fuse is like a normally closed switch. A fuse is designed to allow current to pass under normal circumstances. However, unlike a normally closed …

## Electric Current and Magnetism Relationship

During the eighteenth and nineteenth centuries, a great deal of research was directed toward discovering the link between electricity and magnetism. A Danish physicist, Hans Christian Oersted, discovered that a magnetic field existed around a conductor carrying an electric current. You can perform an experiment that shows the magnetic field …

## Series Circuit Applications and Troubleshooting

There are numerous applications for the principles of series circuits. This section demonstrates how to apply those principles and shows you the specific example of an airfield lighting system. In addition, troubleshooting series circuits is discussed. Applying Ohm’s Law to a Series Circuit Ohm’s law can be applied to any …

## Conductors, Insulators, and Semiconductors | Theory | Examples

All materials are classified according to their ability (or inability) to conduct as shown in Table 1. Table 1 Conductor, Insulator, and Semiconductor Characteristics A good example of a Conductor is copper. Copper wire (which is the most commonly used conductor) passes current with little opposition. A good example of …

## Ohms Law and Power in Electrical Circuits

This module will enable readers to use Ohm’s Law and electric power formulas to determine the voltage, current, resistance and power in a basic DC circuit. Objective Learner will be able to: Use Ohm’s Law to determine voltage, current, or resistance Define Energy and Power Calculate Power in a basic …

## Resistor Color Code and Resistor Tolerance Explained

As you know, a resistor is a component that is designed to provide specific amount of resistance. Resistors are classified as being either fixed or variable. A FIXED RESISTOR is one that has specific ohmic value that cannot be changed by the user. A VARIABLE RESISTOR is one that can …

## Inductor and Capacitor Basics

The ideal resistor was a useful approximation of many practical electrical devices. However, in addition to resistance, which always dissipates energy, an electric circuit may also exhibit capacitance and inductance, which act to store and release energy, in the same way that an expansion tank and flywheel, respectively, act in …

## Hybrid Parameters of Two Port Network

For analyzing circuits containing active devices such as transistors, it is more convenient to think of the input terminals of a four-terminal coupling network as a Thévenin-equivalent voltage source and the output terminals as a Norton-equivalent current source. We then describe the coupling network in terms of four hybrid parameters …

We can represent the generalized coupling network by the π-network shown with dotted lines in Figure 1. It is simpler to work with admittances when we encounter a coupling network in the form of a π-network, which is a dual for a T-network. Although the resulting short-circuit admittance parameters (y-parameters) …

## Open-Circuit Impedance Parameters

To define the composition of a four-terminal, two-port network, we need four parameters. The test circuit of Figure 1 gives a set of parameters called the open-circuit impedance parameters (z-parameters) of the network. Figure 1 Determining open-circuit impedance parameters We start by opening the right-hand switch in Figure 1 so …