Alternating current (AC) is the most naturally occurring form of energy in the universe. If you have a fair grasp of direct current (DC) then alternating current is a relatively easy concept. It is ...

The two major classes of AC machines are (1) synchronous and (2) induction machines. The field current of synchronous machines (motors and generators) is supplied by a separate direct current (DC) ...

Allen Community College will pursue three new courses: a gerontology/aging specialist program, Energy Industry Fundamentals ...