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Does the human body have a magnetic force?
Yes, the human body produces a magnetic field due to the electrical currents generated by the nervous system and the heart. This magnetic field is very weak and not strong enough to be considered significant compared to other magnetic fields in nature.
Does prolonged exposure to magnetic fields affect the human brain?
If the field is strong enough, then yes.
How strong is the human magnetic field and what factors influence its intensity?
The human magnetic field is very weak, about 100 times weaker than the Earth's magnetic field. Factors that influence its intensity include the body's electrical activity, blood flow, and the presence of metal objects.
What animals follow the earth's magnetic field?
Almost all creatures sense magnetic field except us, human.
How does earth's magnetic field help human beings?
The Earth's magnetic field deflects solar winds which contain charged particles. These particles would be fatal to human beings.
Which Human sense organ is sensitive to magnetic field?
touch
How can one see magnetic fields?
One can see magnetic fields by using a device called a magnetic field viewer, which contains tiny particles that align with the magnetic field lines, making them visible to the human eye.
Why is an electric field induced in the human body by time-varying magnetic field gradients in MRI?
Look up Faraday's Law of Induction. A time-varying magnetic field (i.e. a field gradient) induces an electric field. You could think of this as a transformer, in which the gradient coil is the primary and the human body is the secondary!
Can you feel or hear the magnetic field?
No, humans cannot physically feel or hear a magnetic field. Magnetic fields are typically invisible and do not produce any sound that the human ear can detect. However, specialized equipment can detect and measure magnetic fields.
What happens when a magnetic compass is held in space far away from earth's magnetic field....will it be influenced by the other stellar objects which may or may not have magnetic poles of their own?
How far away? Compasses function based on their interaction with the Earth's magnetic field. If a person were to take a compass outside of that field, it would cease to provide any relevant information. Of course, no human has ever been anywhere near that far away, but interplanetary robots and probes have.
Does the earth's magnetic field affect people?
No. People are remarkably unaffected by magnetic fields, even extremely strong ones. Otherwise, people in an MRI machine would be in pain. As it is, the only problem with having an MRI is the noise.
What is the process of using radio waves and magnetism to produce images of tissues in the human body?
This process is called magnetic resonance imaging (MRI). MRI uses a strong magnetic field and radio waves to create detailed images of tissues inside the body. The hydrogen atoms in our bodies align with the magnetic field, and when radio waves are sent through the body, these atoms emit signals that are used to create the images.
