Electrical Engineering Guides

Basic Electrical

Voltage Regulators: Linear, Shunt, and Zener Diode

What is Voltage Regulation A voltage regulator is an electronic or electrical device that can sustain the voltage of power supply within suitable limits. The electrical equipment connected to the voltage source should bear the value of the voltage. The source voltage should be in a certain range whi

By Electrical4u 03/11, 2024
Basic Electrical

Voltage Multiplier

It is in actuality a modified capacitor filter circuit (rectifier circuit) which makes a DC output voltage that is two or more than two times the AC peak input. In this section, we can look into full-wave voltage doubler, half-wave voltage doubler, voltage tripler and finally quadrupler . Half Wave

By Electrical4u 03/11, 2024
Basic Electrical

Regulated Power Supply: Circuit Diagram & Types

What is a Regulated Power Supply? A regulated power supply converts unregulated AC ( Alternating Current ) to a constant DC (Direct Current ). A regulated power supply is used to ensure that the output remains constant even if the input changes. A regulated DC power supply is also known as a linear

By Electrical4u 03/11, 2024
Basic Electrical

Direct Current: What is it?

What is DC Current? DC stands for Direct Current, although it is often called “DC Current”. DC current is defined as a unidirectional flow of electric charge . In DC current, the electrons move from an area of negative charge to an area of positive charge without changing direction. This is unlike a

By Electrical4u 03/11, 2024
Basic Electrical

Open Circuit Voltage: What is it?

What is Open Circuit Voltage? When an open circuit condition is created in any device or circuit, the difference of electric potential between the two terminals is known as the open-circuit voltage. In network analysis, the open-circuit voltage is also known as the Thevenin Voltage . The open-circui

By Electrical4u 03/11, 2024
Basic Electrical

Eddy Current Testing

A non-destructive test technique that may be used on conductive materials is eddy current testing. Adjacent to the test surface is a test coil that is powered by alternating current. Eddy currents are created in the test piece as a result of the alternating magnetic field which is produced. The test

By Rabert T 03/10, 2024
Basic ELectrical

DC Voltage: What is it?

What is DC Voltage? DC voltage stands for “Direct Current Voltage”. While this sounds confusing, the term “DC” has become used more broadly to refer to a system that has constant polarity. Hence DC voltage is a voltage that produces or would produce a DC current . Conversely, an AC voltage is a volt

By Electrical4u 03/09, 2024
Basic Electrical

Independent Voltage and Current Sources

A voltage source is a device that provides a constant or varying electric potential difference between its terminals. A current source is a device that provides a constant or varying electric current through its terminals. Both voltage and current sources are essential for powering various electrica

By Electrical4u 03/09, 2024
Basic Electrical

Temperature Coefficient of Resistance (Formula And Examples)

What is the Temperature Coefficient of Resistance? The temperature coefficient of resistance measures changes in the electrical resistance of any substance per degree of temperature change. Let us take a conductor having a resistance of R 0 at 0 o C and R t at t o C, respectively. From the equation

By Electrical4u 03/09, 2024
Basic Electrical

Resistances in Series and Resistances in Parallel

More than one electrical resistance can be connected either in series or in parallel in addition to that, more than two resistances can also be connected in combination of series and parallel both. Here we will discuss mainly about series and parallel combination. Resistances in Series Suppose you h

By Electrical4u 03/09, 2024
Basic Electrical

Resistivity Laws of Resistance and Unit of Resistivity

Resistivity or Coefficient of Resistance Resistivity or Coefficient of Resistance is a property of substance, due to which the substance offers opposition to the flow of current through it. Resistivity or Coefficient of Resistance of any substance can easily be calculated from the formula derived fr

By Electrical4u 03/09, 2024
Basic Electrical

Resistance Variation with Temperature

There are some materials mainly metals, such as silver, copper, aluminum, which have plenty of free electrons. Hence this type of materials can conduct current easily that means they are least resistive. But the resistivity of these materials is highly dependable upon their temperature. Generally me

By Electrical4u 03/09, 2024

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Voltage Regulators: Linear, Shunt, and Zener Diode

Voltage Multiplier

Regulated Power Supply: Circuit Diagram & Types

Direct Current: What is it?

Open Circuit Voltage: What is it?

Eddy Current Testing

DC Voltage: What is it?

Independent Voltage and Current Sources

Temperature Coefficient of Resistance (Formula And Examples)

Resistances in Series and Resistances in Parallel

Resistivity Laws of Resistance and Unit of Resistivity

Resistance Variation with Temperature

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