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.
The greater the number of turnings, the greater is the strength of the magnetic field. A large current passing through the solenoid generates a stronger electromagnet. The core can be made from iron, steel, aluminum or copper. A large core has more copper wire wound around it.