Magnetic Field

Q1: Define Magnetic Field.

Answer:

A magnetic field is a region around a magnet or a moving charged particle that exerts a force on other magnets or moving charges.

Q2: What causes Magnetic Field?

Answer:

A magnetic field is caused by the motion of charged particles, such as electrons, in a magnetic field.

Q3: What is the Unit of Magnetic Field?

Answer:

The unit of magnetic field is the tesla (T) in the SI system and in CGS system unit of magnetic field is Gauss(G).

Q4: What is the Difference between a Magnetic Field and an Electric Field?

Answer:

The key difference between both a magnetic field and an electric field is that a magnetic field is produced by the motion of charged particles, while an electric field is produced by the presence of an electric charge.

Q5: How do Magnetic Fields affect Materials?

Answer:

Magnetic fields can cause certain materials, such as iron, to become magnetized, which can then exert magnetic forces on other materials.

Q6: Can Magnetic Fields be harmful to humans?

Answer:

Highly intense magnetic fields can be harmful to humans, causing headaches, dizziness, and other health problems. However, the magnetic fields encountered in everyday life are generally not strong enough to cause harm.

Q7: Define Magnetic Field Lines.

Answer:

Magnetic field lines are the imaginary lines around the source of the magnet which can be used to represent the direction of the magnetic field at that point.

Q8: Why do Magnetic Field Lines never Intersect?

Answer:

Since magnetic field is a vector field, the lines denote the direction of magnetic field. If two magnetic field lines intersect each other, there will be two directions of the magnetic field at a single point which is not possible. Thus, magnetic field lines do not intersect each other. 

Q9: What is Magnetic Field Intensity?

Answer:

The measure of strength of the magnetic field is called magnetic field intensity and it is denoted by H.

Q10: By Which Instrument the Presence of a Magnetic Field can be determined? 

Answer: 

A magnetometer is the device used to measure the magnetic field in an area, magnetic needles can also determine direction and presence of magnetic field.



Magnetic Field

Magnetic Fields is the region around a magnet in which it exerts a force on other magnetic material. The magnetic field of the earth protects us from harmful solar radiation as well as the production of electricity for homes is also an application of the Magnetic Field. Thus everybody should know about the basics of it. In this article, we will explore the concepts of magnetic fields in a well-detailed manner. Other than that we will also learn about the magnetic field line, its properties, application, and intensity as well. So, let’s explore the fascinating world of magnetic fields and learn how they shape our lives.

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Magnetic Field Definition

According to the definition of the magnetic field, it is the region around a magnet or current-carrying conductor around which the force of magnetism can be observed....

Unit of Magnetic Field

The SI unit for the magnetic field is the tesla (T)....

Illustration of Magnetic Field

A Magnet is a material that has the ability to produce a magnetic field which creates magnetic field lines, the field force is able to attract and repel other ferromagnetic materials like iron, nickel, etc. The magnetic field can be illustrated using two possible ways – Magnetic Field Vector and Magnetic Field Lines....

Magnetic Field Lines

Another representation of the magnetic field can be done using the magnetic field lines which are shown in the figure below. The strength of the magnetic field is shown here by the closeness of magnetic field lines. For example, the magnetic field is stronger at the poles because the lines are more crowded in that area....

Magnetic Field Intensity

Magnetic field Intensity denotes the strength of the magnetic field. It is represented by H and is a vector quantity. It is defined as the magnetomotive force(MMF) needed to create a flux density B inside a material per unit length of that material. The unit of Magnetic Field intensity is Ampere/Meter and the dimensional formula for the same is given by [M1T-2I-1]. SI unit of Magnetic Field Intensity is Tesla.  A magnetic field of strength One Tesla can also be thought of as the magnetic field producing a force of 1 Newton per ampere of current in each meter of conductor....

Magnetic Field lines due to Current Carrying Straight Conductor

The magnetic field lines produced by a straight current-carrying conductor is in the form of concentric circles, depending upon the direction of the current, magnetic field lines also change their directions....

Magnetic Field lines due to Current through a Circular Loop

The magnetic field lines will create the same pattern as they created in the case of a straight current-carrying conductor, That means, the field lines will be concentric in nature, but based on the direction of the current, the direction of field lines will change as well. For example, in a circular loop, imagine two places, one where the current goes upward and one where the current goes downward, according to the right-hand thumb rule, in the first case, the field lines must be anticlockwise in nature, and in the second case, the field lines must be clockwise in nature....

Magnetic Field lines due to Current in Solenoid

A solenoid is a helical coil which upon giving current becomes an electromagnet and forms the North and South Pole and due to moving charges, it creates Magnetic field lines. The field lines created by the solenoid look similar to the field lines created by a simple Bar magnet....

Force on a current-carrying conductor placed in a Magnetic Field

Imagine a wire (conductor) is placed under a magnet and current is passed through the wire, due to the moving electric charges in a magnetic field, a force is applied to the conductor that moves it in a certain direction, this phenomenon was given by Michael Faraday. The direction of the force on the conductor is determined by Fleming’s left-hand rule....

Difference between Magnetic Field and Electric Field

There are some key differences between Magnetic Field and Electric Field, which are listed in the following table:...

Electromagnet

An electromagnet is a type of magnet formed due to the current moving and passing through it, it is a type of temporary magnet and is mostly seen as a coil wrapped over a soft iron core (for example, solenoid)....

Sample Questions on Magnetic Field

Question 1: What are the applications of Fleming’s left-hand rule?...

FAQs on Magnetic Field

Q1: Define Magnetic Field....