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.
As will be explained in the next episode, the unit for electric field strength can also be expressed as volts per metre, V m -1. Now, for the non-uniform field due to a point (or spherical) charge, we can use Coulombâs law to find an expression for the field strength.