Electrical Theory Journeyman

Electrical Theory Journeyman Providing a path to earth helps reduce _____ _____ ️electrostatic charge Lightning frequently terminates to a point of elevation and strikes nonmetallic as well as metallic objects with the _____ _____. ️same frequency It is not the force of the magnetic field through a conductor that produces electricity; it is the _____ _____ of the field to the electrons within the conductor that produces the movement of electrons. ️relative motion The severity of an electric shock is dependent on the current flowing through the body, which is impacted by circuit _____ and contact _____. ️voltage; contact People become injured and death occurs when voltage pushes electrons through the human body causing the heart to go into _____ ______ ️ventricular fibrillation An electrical arc blast can approach __________, which vaporizes metal parts and produces an explosive and deadly pressure wave. ️30,000 degrees F If a conductor carrying current is next to another conductor carrying current in the opposite direction, the _____ field attempts to push the conductors apart. ️electromagnetic A clamp on AC ammeter has a coil that is clamped around the conductor and detects the rising and falling _____ field being produced due to the ac flow through the conductor ️magnetic Ohmmeters measure the _____ or opposition to current flow of a circuit or component ️resistance The megger is used to measure very high-_____ values, such as those found in cable insulation, or motor and transformer windings. ️resistance The electric motor works on the principle of attracting and repelling forces of _____ fields ️magnetic The _____ of a generator is forced to rotate while it is being subjected to the magnetic field of the stator. ️rotor According to the Electron Current flow Theory, electrons flow away from the _____ terminal of the source through the circuit and load, toward the _____ terminal of the source ️negative; positive According to Conventional Current Flow Theory, electrons travel from _____ to ____ ️positive; negative The major advantage of ac over dc is the ease of voltage regulation by the use of a ️transformer What is the voltage drop of two 12 AWG conductors (0.40 ohms) supplying