Physics Electricity and Magnetism




Physics Electricity and MagnetismWhenever you ring a doorbell, switch on a television or travel in a car, Electricity and Magnetism are involved.

Electricity is not just something you get in a battery. It is one of the fundamental ingredients of the world. Everything close to us is made from invisible atoms and the atoms contain particles that have electric charge. Charge can be negative or positive.

Magnetism is what provides magnets their capability to attract things made of steel or iron. A magnet generates around itself an area of space with unique properties. This region is referred to as a MAGNETIC FIELD. When two magnets come near each other, their fields generate forces that repel or attract.

Relationship between Electricity and Magnetism

The relationship between electricity and magnetism is referred to as electromagnetism. Electricity and magnetism were regarded as separate for some time. But they are connected and both powerful forces in nature.

Methods to Show the Relationship:

Every time an electrical charge moves, a magnetic field is produced and every time a magnetic field is diverse an electric field is developed. 

If you have a coil of wire close to a core of metal and move a current through the coil, a magnetic field is created. This is known as an electromagnet. Moving electrical charges produces magnetic fields.

In the same manner, if you move a wire circuit via a magnetic field, it will create an electric current. Different magnetic fields will produce an electric current.

Electric and Magnetic Fields

Electric and magnetic fields (EMFs) are hidden areas of energy, often known as radiation, that are related to the usage of electrical power and various types of natural and manmade lighting. EMFs are generally characterized by frequency or wavelength into 1 of 2 radioactive categories:

Ionizing: high-level radiation which has the potential for cellular and DNA damage

Non-ionizing: low-level radiation which is usually perceived as harmless to humans

Can EMFs be harmful to humans health?

Throughout the 1990s, many EMF research centered on extremely low frequency exposures stemming through conventional power sources, including electrical substations, power lines or home appliances. While a few of these studies demonstrated a possible link between EMF field strength and an improved risk for childhood leukemia, their findings indicated that such an association had been weak. 





Latest Articles


Interesting Facts about Platinum

Scientists analyzed samples of the metal following European exploration of the region started. Platinum has been used by ancient people in Central and South America.

Cool Facts about Gold

Not many chemicals can attack gold, so thatís why it maintains it shine even when buried for 1000ís of years. When compared with other metals, gold is much softer. One can beat 1 gram of gold to a 1 square meter sheet and light would shine via that sheet.

Interesting Facts about Wind Energy

One wind turbine can power as much as 500 homes. Wind mills date all the way back to the year 2000 BC where they were utilized in China.

Interesting Facts about Fruit

Fruit is beautiful, tasty and great for all us. Fruit is also interesting. Listed here is a brief collection of interesting facts about fruit.

Facts about the Rock Cycle

Liquid rock which cools quickly after exposure to the Earthís atmosphere are fine-grained and known as extrusive. Obsidian is an example of this kind of rock.