Electrical Engineering Guides

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
Electrical Basics

State Joule’s Law

Joule’s Law: According to Joule’s Law, when a current flows in a conductor, the amount of heat generated is proportional to the current, resistance, and time in the current flowing. Joule’s law of Heating: The unit of Joules is used to measure the amount of heat generated by the movement of current

By Rabert T 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
Electrical Basics

Explain Biot Savart Law

What exactly is Biot Savart Law? The Biot Savart Law is a mathematical equation that describes the magnetic field produced by a constant electric current. It connects the magnetic field to the electric current’s size, direction, length, and proximity. Ampere’s circuital law and Gauss’ theorem are bo

By Rabert T 03/09, 2024
Electrical Basics

Ampere’s circuital law

Ampere’s circuital law is a fundamental law in electromagnetism that relates the magnetic field around a conductor to the electric current flowing through the conductor. It is named after French scientist André-Marie Ampère, who developed the law in the early 19th century. Ampere’s circuital law Equ

By Rabert T 03/09, 2024
Electrical Basics

State Gauss’s law

In physics, Gauss’s Law is a fundamental relationship that connects the distribution of electric charge to the resulting electric field. It is a generalization of Coulomb’s Law, which describes the electric force between two-point charges. Gauss’s Law states that the flux of the electric field throu

By Rabert T 03/09, 2024
Electrical Basics

Curie’s Law

Curie’s Law is a relationship in physics that describes the behavior of magnetic materials at different temperatures. It states that the magnetic moment per unit volume of a material is directly proportional to the temperature. The magnetic moment of a material is a measure of the strength of its ma

By Rabert T 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
Electrical Basics

Hopkinson’s Law

Hopkinson’s Law is a relationship in materials science that describes the behavior of materials under high strain rates. It states that the stress of a material is proportional to the strain rate at which it is deformed. Hopkinson’s Law is named after Sir Benjamin Baker Hopkinson, who first proposed

By Rabert T 03/09, 2024
Basic Electrical

Electrical Reactance: What is it?

What is Reactance? Reactance (also known as electrical reactance ) is defined as the opposition to the flow of current from a circuit element due to its inductance and capacitance . Greater reactance leads to smaller currents for the same applied voltage . Reactance is similar to electric resistance

By Electrical4u 03/09, 2024
Electrical Basics

Wiedemann–Franz law

The Wiedemann–Franz law is a relationship in physics that relates the electrical conductivity of a metal to its thermal conductivity. It states that the ratio of the electrical conductivity to the thermal conductivity of a metal is proportional to the temperature and is equal to a constant known as

By Rabert T 03/09, 2024

Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

All

Temperature Coefficient of Resistance (Formula And Examples)

State Joule’s Law

Resistances in Series and Resistances in Parallel

Resistivity Laws of Resistance and Unit of Resistivity

Explain Biot Savart Law

Ampere’s circuital law

State Gauss’s law

Curie’s Law

Resistance Variation with Temperature

Hopkinson’s Law

Electrical Reactance: What is it?

Wiedemann–Franz law

Recommended Topics