Question

How does magnetic resonance work?

Answer 1

Answer:

"MRIs employ powerful magnets which produce a strong magnetic field that forces protons in the body to align with that field. When a radiofrequency current is then pulsed through the patient, the protons are stimulated, and spin out of equilibrium, straining against the pull of the magnetic field."

Answer 2

Answer:

Magnetic resonance imaging (MRI) uses the body's natural magnetic properties to produce detailed images from any part of the body. ... When the body is placed in a strong magnetic field, such as an MRI scanner, the protons' axes all line up.

Explanation:

MRIs employ powerful magnets which produce a strong magnetic field that forces protons in the body to align with that field. When a radiofrequency current is then pulsed through the patient, the protons are stimulated, and spin out of equilibrium, straining against the pull of the magnetic field.