# Blog

## What is electromagnetic force Class 11?

Electromagnetic Force: It is the force between charged particles. Charges at rest have electric attraction (between unlike charges) and repulsion (between like charges). ... Together they are called Electromagnetic Force.

## Where is electromagnetic force?

The electromagnetic force is a force that occurs between electrically charged particles, such as electrons, and is described in electrostatics as being either positive or negative. Objects with opposite charges produces an attractive force between them, while objects with the same charge produce a repulsive force.Jul 10, 2019

## How do you define electromagnetic?

Electromagnetic is used to describe the electrical and magnetic forces or effects produced by an electric current.

## Why is it called electromagnetic?

The waves of energy are called electromagnetic (EM) because they have oscillating electric and magnetic fields. ... If it has low frequency, it has less energy and could be a TV or radio wave. All EM energy waves travel at the speed of light.

## What is electromagnetic induction class 10?

The production of Electricity from Magnetism is called Electromagnetic Induction. We can produce current by. Moving conducting Wire inside a Fixed Magnetic Field. (Hence, if we keep a conducting wire near the magnetic field of magnet and move it vigorously, current will be induced in it.) or.Apr 30, 2020

## What is electromagnetic force Class 8?

The electromagnetic force is a type of physical interaction that occurs between electrically charged particles. It acts between charged particles and is the combination of all magnetic and electrical forces. The electromagnetic force can be attractive or repulsive.

## What is electromagnetic force write its properties?

The properties of electromagnetic force are as follows: 1) It obeys the inverse square law. 2) It may be attractive or repulsive in nature. 3) It is a long range force. 4) The photon is the field particle of electromagnetic force.Apr 16, 2014

## What is an electromagnet Class 7?

Answer: An electromagnet is a coil of insulated wire wound around a piece of a magnetic substance such as soft iron. The magnetic substance acts as a magnet as long as the current flows in the wire.

## Why is there an electromagnetic force?

Electromagnetic Force

The direction of magnetic flux produced by a permanent magnet is always from N-pole to S-pole. When a conductor is placed in a magnetic field and current flows in the conductor, the magnetic field and the current interact each other to produce force. The force is called "Electromagnetic force".

### What causes electromagnetic force?

The electromagnetic force is caused by the exchange of photons (effectively 'particles' of light) and the chance of photons being emitted or absorbed is related to the charge on an object.Nov 10, 2017

### What is unit of electromagnetic force?

As with all forces, electromagnetic force is measured in Newtons (N). The constant ​k​ has a specific value, 9 × 109 N m2 / C2.Nov 2, 2020

### What is the definition of electromagnetic for kids?

Kids Definition of electromagnetic

: of or relating to a magnetic field produced by an electric current. electromagnetic.

### Which best describes the electromagnetic force?

• The electromagnetic force is one of the four fundamental forces. The electric force acts between all charged particles, whether or not they're moving. The magnetic force acts between moving charged particles. Moving charged particles (like those in electric current) give off magnetic fields.

### What is the formula for electromagnetic force?

• Formula: F = (n x i) 2 x magnetic constant x a / (2 x g 2) Where, F = Force, i = Current, g = Length of the gap between the solenoid and a piece of metal, a = Area n = Number of turns, Magnetic constant = 4 x PI x 10 -7 . Solenoid Coil Electromagnetic Force calculation is made easier here.

### What does the electromagnetic force do?

• electromagnetic force. The fundamental force associated with electric and magnetic fields. The electromagnetic force is carried by the photon and is responsible for atomic structure, chemical reactions, the attractive and repulsive forces associated with electrical charge and magnetism, and all other electromagnetic phenomena.

### What is electromagnetic force in physics?

• Electromagnetism is a branch of Physics, deals with the electromagnetic force that occurs between electrically charged particles. The electromagnetic force is one of the four fundamental forces and exhibits electromagnetic fields such as magnetic fields, electric fields, and light.

### What makes the electromagnetic force?

The electromagnetic force is caused by the exchange of photons (effectively 'particles' of light) and the chance of photons being emitted or absorbed is related to the charge on an object.Nov 10, 2017

### What kind of force is electromagnetic?

Electromagnetism is the force that acts between electrically charged particles. This phenomenon includes the electrostatic force acting between charged particles at rest, and the combined effect of electric and magnetic forces acting between charged particles moving relative to each other.

### What is the electromagnetic force for kids?

The electromagnetic force is the force that causes an attraction between electrons and the positive nucleus. All forces between atoms are caused by the electromagnetic force.Jul 16, 2021

### What is electromagnetic force class 11th?

Electromagnetic Force: It is the force between charged particles. Charges at rest have electric attraction (between unlike charges) and repulsion (between like charges). ... Together they are called Electromagnetic Force.

### Why is electromagnetic force important?

Electromagnetic forces are responsible for holding atoms together in solids and liquids, creating friction forces that allow you to walk across the room, producing light and radio waves, generating electricity, and so much more! Electromagnetic forces are responsible for making this bulb give off light.

### What is the difference between electromagnetic force and electromotive force?

Potential difference is the energy released when the unit quantity of electricity passes from one point to another. The full form of EMF is Electromotive force. The cause is the Electromagnetic Field. ... Voltage developed by an electrical source is called electromotive force.

### What is electromagnetic force equation?

The equation is given by F = q v × B or F = qvB sin θ, where q is the charge, B is the magnetic field, v is the velocity, and θ is the angle between the directions of the magnetic field and the velocity; thus, using the definition of the cross product, the definition for the magnetic field is.

### What happens without electromagnetic force?

Without the electromagnetic force, atoms and molecules would never form. Electromagnetism is the force exerted by charged particles on one another. Electrons and protons are oppositely charged particles that react to both electric and magnetic fields.

### What are the common names for electromagnetic forces?

The common designations are: radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma rays.Mar 12, 2015

### Why friction is electromagnetic force?

Friction is the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism. Instead, scientists believe it is the result of theelectromagnetic attraction between charged particles in two touching surfaces.Feb 12, 2020

### What are the 4 types of forces?

fundamental force, also called fundamental interaction, in physics, any of the four basic forces—gravitational, electromagnetic, strong, and weak—that govern how objects or particles interact and how certain particles decay. All the known forces of nature can be traced to these fundamental forces.

### How to calculate the force of an electromagnet?

• Engineers make solenoids - electromagnets - by twisting lengths of metal in a spiral fashion around a cylindrical template. You can determine the magnitude of that force by plugging the dimensions and other properties of the magnet based into a simple equation: F = (n X i) 2 X magnetic constant X a / (2 X g 2) .

### What causes the electromagnetic force?

• The electromagnetic force is caused by the exchange of photons (effectively ‘particles’ of light) and the chance of photons being emitted or absorbed is related to the charge on an object. More specifically the constant that links charge and the emission (or absorption) of a photon is called alpha, the fine structure constant.