# Magnetodynamics & Magnetostatics – Hub of related Posts

Here goes the list of our posts on Magneto dynamics and related topics and subtopics. (Magnetodynamics – Hub of related Posts)

#### Magnitude and Direction of an induced e.m.f.

To explain electromagnetic induction Faraday suggested that an e.m.f. is induced in a conductor whenever it ‘cuts’ magnetic field lines, i.e. moves across them, but not when it moves along ...

#### Electromagnetic Induction Experiments

The effect of producing electricity from magnetism was discovered in 1831 by Faraday and is called electromagnetic induction. It inspired the construction of generators for producing electrical energy in power ...

#### Magnetic Shielding: Protecting Your Devices from the Invisible Force

Have you ever wondered how your sensitive electronic devices manage to operate flawlessly in a world filled with magnetic fields? The answer lies in a fascinating phenomenon called magnetic shielding ...

#### Magnetization and Demagnetization – different ways

In the following paragraphs, different ways of Magnetization and Demagnetization are listed. Different Ways of Magnetization A ferromagnetic material can be magnetized by placing it inside a solenoid and gradually ...

#### Plotting magnetic lines of force using the Iron Fillings method

Let's see how to plot magnetic lines of force using the Iron Fillings method. Place a sheet of paper on top of a bar magnet and sprinkle iron filings thinly ...

#### Plotting magnetic lines of force with plotting compass

In this post, let's see how to plot magnetic lines of force with a plotting compass. A plotting compass is a small pivoted magnet in a glass case with non-magnetic ...

#### Numerical problems based on Faraday’s Law

In this post, let's solve numerical problems based on Faraday's Law. 1 ) A coil of wire with 50 turns has a uniform magnetic field of 0.4 T passing through ...

#### Faraday’s Law of Electromagnetic Induction

Statement of Faraday’s law of Electromagnetic Induction summarizes the results of his experiments:A voltage (electromotive force) is induced in a circuit when there is a changing magnetic flux passing through ...

#### Magnetic Field lines due to a Current in a Solenoid

A coil of many circular turns of insulated copper wire wrapped closely in the shape of a cylinder is called a solenoid. The pattern of the magnetic field lines due ...

#### Calculate the magnetic field at the center of a square loop of side 10 cm carrying a current of 5A.

Problem statement: Calculate the magnetic field at the center of a square loop of side 10 cm carrying a current of 5A. Solution: Given: Square loop's side: a= 10 cm ...

#### Find the magnetic field at a distance of 20 cm from a long, straight wire carrying a current of 10A.

Problem Statement: Find the magnetic field at a distance of 20 cm from a long, straight wire carrying a current of 10A. Solution: Given: current I =10 Adistance r = ...

#### Calculate the magnetic field at point P located on the axis at a distance of 10 cm from the center of a circular wire of radius 5 cm carrying a current of 5 A.

Problem statement: Calculate the magnetic field at point P located on the axis at a distance of 10 cm from the center of a circular wire of radius 5 cm ...

#### Biot-Savart Law Numericals

Physics Numerical Problems Based on Biot Savart Law - The Biot-Savart law is a fundamental relationship in magnetostatics. It describes the magnetic field generated by a steady current. In this ...

#### Find the magnetic field B at the center of square loop of side a carrying a current I

In this post, we will find the formula of the magnetic field B at the center of a square loop of side a, carrying a current I. Here is the diagram to understand the situation ...

#### Magnetic Moment Numerical class 12 solved

In this post, we have solved physics numerical on the magnetic moment. This is good for class 12. The magnetic moment formula is used. refer: Magnetic moment formula Question 1] ...

#### Magnetic Moment – definition, formula, questions class 12

In this post, we will cover the Magnetic Moment, with its definition, formula, concepts, and questions. Magnetic Moment - definition, formula, and Concepts class 12 The quantity of a magnetic ...

#### Lorentz Force – definition, formula

In this post, we will study the definition and formula of Lorentz force. Lorentz force - definition Lorentz Force: When a charge q moving with velocity v enters a region ...

#### Torque on a current loop in a uniform magnetic field class 12

In this post, we will know about the Torque on a current loop in a uniform magnetic field. We will also derive its equation. If a loop of current-carrying wire ...

#### Orbital motion of a charge in the magnetic field & radius of the orbit

The direction and magnitude of the force on a charged particle in a magnetic field affect the path that an electric charge takes. The direction of the force causes the ...

#### Work done by a magnetic field on a moving charge

Magnetic fields do no work on charged particles that travel through them - at least, not by the definition of work in physics. So a charged particle in a magnetic ...

#### Magnetic field in solenoid – formula, direction

In this post, we will discuss the Magnetic field in a solenoid. We will also study the formula of the magnetic field in a solenoid and how to find out ...

#### Path of a Charged Particle in a Uniform Magnetic Field

Path of a Charged Particle in a Uniform Magnetic Field - The direction of the initial motion of a charged particle in an external magnetic field determines how the charged ...

#### Solenoid – magnetic field

A long closely wound helical coil is called a solenoid. Fig 1 shows a section of a stretched-out solenoid. Fig 1 Magnetic field due to a current-carrying solenoid. Solenoid and ...

#### Magnetic field along the axis of a circular coil carrying current

In this post, we will see how to derive equations for the Magnetic field along the axis of a circular coil carrying current. We will also find the magnetic field ...

#### Magnetic field due to infinitely long straight conductor carrying current

In this post, we will apply the Biot-Savart law to derive an equation for the Magnetic field due to an infinitely long straight conductor carrying current. Magnetic field due to ...

#### Biot-Savart Law statement, formula, derivation

In this post, we will cover the Biot-Savart Law statement, formula, and derivation. Biot and Savart conducted many experiments to determine the factors on which the magnetic field due to ...

#### Definition of ampere

Definition of ampere will be obtained here from the equation of the force between two parallel wires carrying currents. The force between two parallel wires carrying currents on a segment ...

#### Force between two long parallel current-carrying conductors

In this post, we will obtain the formula of the Force between two long parallel current-carrying conductors. AB and CD are two straight very long parallel conductors placed in the ...

#### Force on a current carrying conductor in a magnetic field

We can obtain the equation for the Force on a current-carrying conductor in a magnetic field using the formula of the force on a moving charge in a magnetic field ...

#### Force on a moving charge in a magnetic field – formula

When a charged particle (or charge) moves in a magnetic field, a magnetic force acts upon it. In this post, we will discuss this and obtain the formula of the ...

#### Ampere’s Circuital Law class 12

This post covers Ampere's Circuital Law (class 12) with its statement and formula. Ampere's Circuital Law in electromagnetism is analogous to Gauss' Law in electrostatics. Ampere's Circuital Law - statement ...

#### Permeability & Relative Permeability

In this post, we will discuss Permeability & Relative Permeability with their definition, relationship, equations, formula, the permeability of air, examples, etc. Permeability The ability of a material to conduct ...

#### Applications of generators and motors

In this post, we will briefly discuss the different applications of generators and motors. Applications of generators and motors in cars Alternator in cars A car contains an alternator that ...

#### Aurora Borealis Aurorae | Aurora Australis

An effect caused by the Earth’s magnetic field is the spectacular Northern and Southern Lights, which are also called the Aurora Borealis (Figure 1) and the Aurora Australis respectively (Figure ...

#### The importance of the Earth’s magnetic field to life on Earth

The Earth’s magnetic field is very important for humans and other animals on Earth because it protects us from being bombarded (struck) by high-energy charged particles, which are emitted by ...

#### Magnetic fields due to different currents

An electric current can cause a magnetic field. The magnetic field patterns due to different currents can be seen in the diagrams below. Magnetic field pattern of a straight wire ...

#### Comparison between electric field and magnetic field

A table of the comparisons between the electric field and the magnetic field is shown below. Electric Field Magnetic Field An electric field is caused by charges. But, a magnetic ...

#### The North pole and South pole of a magnet attract the paper clips equally – how?

In this post, we will discuss how the North pole and the South pole of a magnet attract the paper clips equally. When the magnet is brought close to the ...

#### Force Between Parallel Currents – how to derive the formula

Here, we will find out the formula of the force that acts between parallel currents. Force Between Parallel Currents - deriving the formula Consider two long wires kept parallel to ...

#### AQA GCSE Physics – Equations & Formulae from Magnetism and Electromagnetism chapter

The image below shows a list of equations and formulae from the chapter "Magnetism and Electromagnetism" of the GCSE Physics syllabus. This is also helpful for all other equivalent boards ...

#### Electromagnets & its uses

We can make a magnet that we can switch on and off, using a coil of wire and a battery. It is called an electromagnet. Remember that, a bar magnet ...

#### Electromagnetic Induction – Revision Notes

In this post, we explore electromagnetic induction - the creation of an electric current from a changing magnetic field. Whether the primary source of energy is burning coal, falling water, ...

#### The Transformer equation & Transformer efficiency

In this post we will discuss in detail about the transformer equation and transformer efficiency. We will also solve a few numerical problems using the transformer and efficiency equations. The ...

#### Transformer – what is it and how it works?

What is a transformer? A transformer is used to change or transform alternating potential difference between (a) the power station and the cables, and (2) between the cables and our ...

#### Magnetism

In this post, we will discuss the fundamentals of magnetism. Also, a number of related terminologies like magnetism, magnetic fields, ferromagnetism, paramagnetism, diamagnetism, permanent magnet, poles of magnets, magnetic attraction ...

#### Magnetic Field & Magnetic Field Lines

This post defines the magnetic field and magnetic field lines. This also enlists the properties of magnetic field lines. What is Magnetic field? | Define magnetic field Magnetic Field & ...

#### 9 Worksheets on Electromagnetism [MCQ] | Multiple Choice Questions from the Electromagnetism chapter – physics

Here we present MCQ worksheets on Electromagnetism. Get these worksheets containing Multiple Choice Questions with their answers on topics like electromagnetism basics, electromagnet, power generation or electricity generation, etc. Also, ...

#### Magnetic field lines of permanent magnets & current-carrying wires | How to calculate the magnetic field at an arbitrary distance from the wire?

Let's learn the idea of magnetic field lines of permanent magnets & current-carrying wires, how these lines behave in the situation of permanent magnets and current-carrying wires, and also how ...

#### [pdf notes] Magnetism in physics – grade 10 Notes download | class 10 physics notes on Magnetism

This Magnetism Notes [PDF] is primarily for the grade 10 (10th grade) physics syllabus of different international boards. This also covers the class 10 physics syllabus on Magnetism for boards ...

#### [pdf notes] Generator, motor & electrodynamics – grade 12 Notes download | class 12 physics notes on Generator, motor & electrodynamics

This Generator, motor & electrodynamics Notes [PDF] is primarily for the 12th grade physics syllabus of different international boards. This also covers the class 12 physics syllabus on Generator, motor ...

#### Generator Effect and Motor Effect – underlying Physics principle

Generator Effect and Motor Effect - Fleming's left-hand rule and right-hand rule are the 2 key guidelines for discussing generator effect and motor effect. We will discuss these effects with ...

#### Electromagnetism: Fleming’s Left hand Rule, Right Hand Rule, Maxwell’s Right hand thumb/grip rule with statements and uses

Let’s find out a few interesting incidents of electromagnetism and in the process let’s discuss a few physics Laws or rules like Maxwell's Right-hand thumb rule or Right-hand grip rule ...