# What are three examples of magnetic fields?

## What are three examples of magnetic fields?

10 Examples of Magnetic Force in Everyday Life

• (i). Compass.
• (ii). MRI Scanners.
• (iii). Electric Motor.
• (iv). Speakers.
• (v). Refrigerators.
• (vi). Computer.
• (vii). Microwave.
• (viii). Cars.

What is magnetic circuit with simple diagram?

Analogy between Magnetic circuit and Electric Circuit

Magnetic Circuit Electric Circuit
A closed path for a magnetic flux forms a magnetic circuit. A closed path for an electric current form an electric circuit.
Magnetic flux does not flow in a magnetic circuit. Electric current always flows in an electric circuit.

What is magnetic circuit and electric circuit?

In an electrical circuit, electric current flows through the closed path. In the magnetic circuit, magnetic flux flows through the closed path. 02. Definition of electric current & magnetic flux. The number of free electrons or electric charge particles that move in the circuit is called ‘Electric Current (I)’.

### What are some common examples of electric and magnetic forces at work?

Electric motors use the electromagnetic force between a magnet and a current carrying coil to produce movement. Electric generators use the electromagnetic force between a magnet and a moving coil to generate electrical energy. Loudspeakers use an electric current flowing through a coil to generate a magnetic field.

What is series magnetic circuit?

Definition: The Series Magnetic Circuit is defined as the magnetic circuit having a number of parts of different dimensions and materials carrying the same magnetic field. The magnetic circuit is divided into a different section or parts. Now determine the value of the flux density (B) of the different sections.

Why is a transformer a magnetic circuit?

A magnetic circuit, commonly called the core of a transformer is equipped to supply a path for the magnetic field, which is important for the induction of voltages between windings. Steel itself is a conductor so that the changing lines of magnetic flux also induce current and a voltage in this conductor.

#### What is meant by magnetic circuit?

A magnetic circuit is made up of one or more closed loop paths containing a magnetic flux. The flux is usually generated by permanent magnets or electromagnets and confined to the path by magnetic cores consisting of ferromagnetic materials like iron, although there may be air gaps or other materials in the path.

What is H in magnetic circuits?

The definition of H is H = B/μ − M, where B is the magnetic flux density, a measure of the actual magnetic field within a material considered as a concentration of magnetic field lines, or flux, per unit cross-sectional area; μ is the magnetic permeability; and M is the magnetization.

What is an everyday example of magnetic force?

A door catch is a simple device that uses the magnetic force of attraction to hold a door closed. Computer hard drives use magnetism to store the data on a rotating disk. More complex applications include: televisions, radios, microwave ovens, telephone systems, and computers.

## What is a magnetic circuit?

Magnetic Circuits. In a magnetic circuit, the current is the ratio of the magneto motive force to the reluctance, which is similar to an electric circuit, that is, in an electric circuit the current is the ratio of the electro motive force to the resistance.

What are electric magnetic fields?

Electric and magnetic fields (EMFs) are invisible areas of energy, often referred to as radiation , that are associated with the use of electrical power and various forms of natural and man-made lighting. EMFs are typically characterized by wavelength or frequency into one of two radioactive categories:

What is electric magnetic field?

A magnetic field is generated when electric charge carriers such as electrons move through space or within an electrical conductor.