Request an appointment. Familial adenomatous polyposis (FAP) is a rare, inherited condition that causes extra tissue (polyps) to form in your large intestine (colon) and rectum. Polyps can also occur in the upper gastrointestinal tract, especially the upper part of your small intestine (duodenum).
An iron core will produce the strongest magnet. By increasing the size of the core you also increase the strength of the electromagnet. Compare the diagrams. Note: Look at the amount of coils, the size and number of the power source.
Confidence votes 223. An MRI uses electromagnets to produce an super strong magnetic field. This field causes changes in the behavior of cells and when the magnet is off those cells emit a detectable wave that is picked up by sensors. A computer then interprets those signals and creates a picture of the tissue.