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.
There are three types of metals that interact with magnetic fields. Ferromagnetic metals are strongly attracted to magnets. Paramagnetic metals are also attracted by a magnetic field, but the force of attraction is significantly weaker.In the presence of a strong magnet, diamagnetic metals induce a weak opposing magnetic field.erromagnetic metals are strongly attracted by a magnetic force. The common ferromagnetic metals are iron, nickel, cobalt, gadolinium, dysprosium and alloys such as steel that contain ferromagnetic metals. Ferromagnetic metals are commonly used to make permanent magnets.