Centripetal force is often confused with centrifugal force, which is not a real force, but the apparent force caused by inertia while an object is changing direction.
Static equillibrium is maintained when the sum of all the forces acting on a stationary object is zero.
Mechanical energy is most commonly transformed in to electrical energy by means of moving a magnet over a conductor. Modern electrical generators use either a spinning magnet inside a torrodial coil of conductive wire, or a spinning torroidal coil of conductive wire with a stationary magnet inside. The energy can then be transmitted along any conductor connected to the coil.
In a direct current circuit, the potential difference across the circuit is reduced by the product of the resistance and the square of the product of the current and the potential difference applied to it. (Stollery)
The equivilant resistance of a series circuit is equal to the sum of all resistances in the circuit. The equivilant resistance of a parallel circuit is equal to the product of all the resistances in the circuit divided by the sum of all the resistances in the circuit. (Xyzzy)
A moving electric charge in a magnetic field experiences a force that is perpendicular both to the magnetic...
(Nave) The right hand rule is used to calculate the direction of the force. If a person's right hand is aligned such that the fingers are pointing in the direction of the magnetic field and the thumb is pointing in the direction of the velocity of the electric charge, the force on the electric charge will be perpendicular in the direction the palm is facing.
Works Cited
Koehler, Kenneth R. "Vectors - a mathematical interlude." 1996. University of Cincinnati. 23 May 2006. http://www.rwc.uc.edu/koehler/biophys/2b.html.
Nave, R. "Magnetic Forces." 23, May 2006. http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/magfor.html.
Stollery, et. al. "Electrical resistance." Wikipedia, The Free Encyclopedia. 23 May 2006. Wikimedia Foundation, Inc. 23 May 2006 http://en.wikipedia.org/w/index.php?title=Electrical_resistance&oldid=54675001.
Xyzzy, et. al. "Series and parallel circuits." Wikipedia, The Free Encyclopedia. 22 May 2006. Wikimedia Foundation, Inc. 23 May 2006 http://en.wikipedia.org/w/index.php?title=Series_and_parallel_circuits&oldid=54526293.
Instantaneous Velocity" 9 Oct 1997 The University of Winnepeg. 23 May 2006. http://theory.uwinnipeg.ca/physics/onedim/node4.html
