Silicon Valley star Thomas Middleditch is engaged to his girlfriend Mollie Gates, Us Weekly can exclusively confirm. PHOTOS: Celebrity weddings 2015.
Why, Alternating Current and Direct Current, of course! Both AC and DC describe types of current flow in a circuit. In direct current (DC), the electric charge (current) only flows in one direction. Electric charge in alternating current (AC), on the other hand, changes direction periodically. The voltage in AC circuits also periodically reverses because the current changes direction.
The circuit is delivering energy to the light bulb from the source, which, in this case, is a power plant. Review. AC, or alternating current means the electrical current is alternating directions in a repetitive pattern. AC is created by generators in power plants, and other sources.