Induced electromagnetic forces can be used in medicine to measure flow rates, such as the rate of blood flow in arteries.
In the field of medicine, the application of electromagnetism has been increasingly welcomed, since it is used in different ailments such as the relief of extreme pain, insomnia, osteoarthritis, muscle pain, treatment of lumbar reticular neuritis and sacrum in children, among others. The magnetic field increases immune activity and intensifies microcirculation.
It is said that when an electric charge is in motion it creates an electric field and a magnetic field around it. This magnetic field exerts a force on any other electric charge that is located within its radius of action. This force exerted by a magnetic field will be the electromagnetic force.
Electromagnetic radiation is generated by the vibration of electrons or other electrically charged particles. The energy produced by this vibration travels in the form of electromagnetic waves.
Electromagnetism is the foundation of electromagnets.
An electromagnet is a type of magnet in which the magnetic field is produced by the flow of an electric current, disappearing as soon as said current ceases. Electromagnets generally consist of a large number of closely spaced turns of wire that create the magnetic field.
The benefits of electromagnetic waves for medicine and technology are:
- sterilization of water and food,
- industrial arc welding,
- photochemical curing of inks,
- paints and plastics,
- and its use in diagnostic and therapeutic medical treatments.
According to the Biot-Savart Law, a loop through which current passes becomes an electromagnet. If we have that loop inside a magnetic field, the like poles will suffer repulsion and the unlike poles will attract. This is the principle for electric motors.
An electromagnet is a magnet that generates electromagnetic fields from an electric current.
Applications of electromagnets for medicine:
- Research and laboratory equipment.
- Artificial respiration and dispensers.
- Magnetic Resonance Imaging
- Resonance
- Ultrasound
- Bone scan
- Radiation therapy
- Dialysis systems.
Applications of electromagnetism
- Electric motors.
- Electric transformers.
- Phone.
- Dynamos.
- Magnetic resonance imaging.
- Microphones.
- Oscilloscopes.
- Magnetic cards.
Consequences:
Electromagnetic waves influence health, through short-wavelength ultraviolet rays they ionize atoms, alter molecules and can cause skin cancer. X-rays and gamma rays penetrate far into the human body and produce ionization. They modify molecules and, as a consequence, can produce mutations and cancers of different types.
X-rays have longer wavelengths than gamma rays, but shorter than ultraviolet radiation and therefore their energy is greater than that of the latter. They are used in various scientific and industrial applications, but mainly used in medicine such as radiography.
The electromagnetic waves that are dangerous to health are ionizing, the waves are seen, but our eyes only perceive a small piece of that electromagnetic radiation: visible light. The use of ionizing radiation falls within the application of radiodiagnosis, radiotherapy and nuclear medicine techniques.
Diagnostic Ultrasound; It is capable of producing images of the body’s internal organs in a non-invasive way. However, it is not good for producing images of bones or tissues that contain air, such as the lungs.
Electromagnetism is very useful for human beings since there are countless applications that allow them to satisfy their needs. Many instruments used daily work due to electromagnetic effects.
The devices you use in your daily life that work with electromagnets are described below:
- Doorbells.
- Magnetic suspension trains.
- Electric transformers.
- Electric motors.
- Dynamos.
- Phone.
- Microwave ovens.
- Magnetic resonance imaging (MRI).
The branches of study of electromagnetics:
- Classical electrodynamics.
- Relativistic electrodynamics (when using a reference frame)
Other examples of electromagnetic waves (which are invisible) are radio and television waves, mobile phones, infrared radiation, radar, ultraviolet rays, microwaves, X-rays and gamma rays, among others.
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