Advantages And Disadvantages Of Magnetic Field

They also say that the magnet’s energy has been described as a catalyst, which speeds up biological processes and enables the body to heal itself and ease pain. This catalyst stimulates blood circulation, allowing more oxygen to be distributed all over the body. (3)

The concept of an MRI machine originated back in 1952, when the American physicist Herman Carr published a thesis with Harvard University sharing his findings on Magnetic Imagining, and proposed a rudimentary idea for a once dimensional magnetic imaging machine.1 Over the next 20 years, his initial ideas were developed by researchers, who proposed the idea of ‘NMR’, or nuclear

With cell phone usage increasing, many individuals have become concerned about the health effects of radiation from cell phones and cell phone towers. In recent years, various studies have been conducted to determine whether the radio frequency waves from cell phone towers have a detrimental effect on health. Current research has yielded inconsistent results regarding the effects of radio frequency waves, and while the World Health Organization does not view radio frequency waves as serious risk, more research needs to be done in order to be certain (USDA, 2009).

A magnetic field is an area in which there is an electrical charge where a magnetic force acts. A magnetic field can be induced in a circular loop and it can be calculated if the radius, current, and number of turns are all known. When in the form of a coil it is directed along the axis of the coil and is usually uniform throughout the coil until it begins to fall off when it gets further away from the center. Another characteristic of magnetic field is that it can be changed to induce a voltage. That induced voltage is known as the magnetic flux and it can be calculated by knowing the area of the coil and the value of the magnetic field going through the coil.

First, we will examine how magnetic fields are created, then we will calculate their magnitude and direction.

Equation 1 below shows the relationship of force (F), current (i), length (L), magnetic field (B), and angle (Ɵ) for a current carrying wire. In this experiment, the angle between the wire and the magnets is 90⁰. This means that sinƟ=1 and can be eliminated.

What is a magnet? Magnet is an object that can create magnetic field by itself. It is usually made from iron. It had a pulling force called magnetism. The pulling force is able to pull at certain things like objects made of iron or steel. It can attract or repel other magnetic objects that are not even magnetized and of course other magnets too. Due to the characteristic of a magnet, it can give a great impact to our world. It has many benefits to the industrial field, the transportation in our modern world, the medical field and also to the household of our daily lives. It can even generate electricity. However, everything comes with a downside, the magnet is not excluded.

This paper is mainly about the origin and discoveries of electricity and magnetism. It is solely a summary of two natural phenomenon which have changed everything about our way of life and has ushered us into a remarkable new age.

An electric current in a magnetic field will experience a force, (HyperPhysics, 2014) due to the interaction between the charged particles in the electric current and the magnet, this force is called the motor effect. To find the direction of magnetic field you use the right-hand rule, pointing the thumb in the direction of the current and curling your fingers in

Much like electric fields, the magnetic field of an object can attract or push away another magnetic object.

Studies from Karato (1993) implies the magnetic field may relate to the magnetizing properties of iron. No matter how the Earth’s magnetic field was formed, it “prevents the atmosphere being stripped away by the solar wind” (Staff, 2010).

In the other hand there is a lot of disadvantages of lightning that affect our body and lives like:

The objective of the experiment was to understand the North and South poles of a magnet and how they relate to each other for a single magnet and two magnets when like poles or unlike poles are placed together. The results of the experiments verified the properties of magnets with respect to how like poles repel and how unlike poles attract. Also, electromagnets were created and investigations confirmed Lenz’s law. The experiment produced results that agreed with expectations, confirming the behavior of like poles, unlike poles, electromagnets and Lenz’s law. A Magnetic Field Sensor was used to measure the magnetic field due to the current flowing in the coil and showed a steady magnetic field relative to time.

Electromagnetic force (EMF) radiation is a non-ionizing force that is present as a result of electric fields [6]. Whenever electrical current is passed through a wire, electromagnetic fields circles the path of current [6,13]. When charged particles move, known as a current, it’s movement generates an electric and magnetic field [6]. The current’s flow generates the magnetic field and the electrical potential generates the electric field[13]. When referring to these two fields together we call them EMFs [13].

The magnetic field are also produced by the moving electric charges. Electric and magnetic fields are two interrelated fields.