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  2. Interlagos Circuit - Wikipedia

    en.wikipedia.org/wiki/Interlagos_Circuit

    After Formula One moved away, the only major race being held at Interlagos was the Mil Milhas Brasil, and the last major race on the original circuit was the 1989 Mil Milhas Brasil. Formula One returned to the circuit in 1990 after it had been shortened and modified at a cost of $15 million. The track layout, aside from the pit exit being ...

  3. List of Formula One circuits - Wikipedia

    en.wikipedia.org/wiki/List_of_Formula_One_circuits

    The Formula One World Championship season consists of a series of races, known as Grands Prix, usually held on purpose-built circuits, and in a few cases on closed city streets. [3] The results of each race are combined to determine two annual championships, one for drivers (World Drivers' Championship), and one for constructors (World ...

  4. Alternating current - Wikipedia

    en.wikipedia.org/wiki/Alternating_current

    Alternating current (AC) is an electric current that periodically reverses direction and changes its magnitude continuously with time, in contrast to direct current (DC), which flows only in one direction. Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy ...

  5. Series and parallel circuits - Wikipedia

    en.wikipedia.org/wiki/Series_and_parallel_circuits

    A series circuit with a voltage source (such as a battery, or in this case a cell) and three resistance units. Two-terminal components and electrical networks can be connected in series or parallel. The resulting electrical network will have two terminals, and itself can participate in a series or parallel topology.

  6. Leading and lagging current - Wikipedia

    en.wikipedia.org/wiki/Leading_and_Lagging_Current

    Angle notation can easily describe leading and lagging current: . [1] In this equation, the value of theta is the important factor for leading and lagging current. As mentioned in the introduction above, leading or lagging current represents a time shift between the current and voltage sine curves, which is represented by the angle by which the curve is ahead or behind of where it would be ...

  7. Circuit Paul Ricard - Wikipedia

    en.wikipedia.org/wiki/Circuit_Paul_Ricard

    After Ricard's death, the track was sold to Excelis, a company owned by Formula One promoter Bernie Ecclestone, in 1999. The track was rebuilt into an advanced test track, and was for a time known as the Paul Ricard High Tech Test Track (Paul Ricard HTTT) before changing its name back to Circuit Paul Ricard.

  8. Yas Marina Circuit - Wikipedia

    en.wikipedia.org/wiki/Yas_Marina_Circuit

    Yas Marina was the second of four Formula One tracks in the Middle East, with the first being in Bahrain and subsequent tracks in Qatar and Saudi Arabia. A two-day GP2 Asia Series test was held to officially open the circuit, which was held a week before the 2009 Abu Dhabi Grand Prix . [ 4 ]

  9. Circuit of the Americas - Wikipedia

    en.wikipedia.org/wiki/Circuit_of_the_Americas

    Circuit of the Americas (COTA) is a Grade 1 [2] FIA-specification 3.426-mile (5.514 km) motor racing track and facilities located in Austin, Texas, United States. The facility is home to the Formula One United States Grand Prix , NASCAR Texas Grand Prix , and the Motorcycle Grand Prix of the Americas , [ 3 ] a round in MotoGP and the FIA World ...