{"id":463,"date":"2018-12-11T13:20:09","date_gmt":"2018-12-11T18:20:09","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/trigforelectricians\/?post_type=back-matter&p=463"},"modified":"2018-12-14T16:16:27","modified_gmt":"2018-12-14T21:16:27","slug":"glossary","status":"publish","type":"back-matter","link":"https:\/\/pressbooks.bccampus.ca\/trigforelectricians\/back-matter\/glossary\/","title":{"raw":"Glossary","rendered":"Glossary"},"content":{"raw":"
\r\n\r\nactive power:<\/strong>\u00a0 The power dissipated in the form of heat or light when dealing with a purely resistive circuit.\u00a0 It is also known as true power<\/strong>.\r\n\r\nacute angle:<\/strong>\u00a0 An angle that is less than 90 degrees.\r\n\r\nadjacent:<\/strong>\u00a0 The side of a triangle that sits\u00a0adjacent<\/em>\u00a0to the designate angle.\r\n\r\nangle:\u00a0 <\/strong>The space between two intersecting lines.\r\n\r\narmature:<\/strong>\u00a0 The part of an alternator where the voltage is induced on to. \u00a0It can be rotating (simple alternator) or stationary (practical alternator).\r\n\r\nbrushes:\u00a0<\/strong> The parts of an alternator that are made of graphite carbon.\u00a0 They are stationary and either pass current to the load (simple alternator) or current to the field (practical alternator).\r\n\r\ncomplementary angles:<\/strong>\u00a0 Two angles whose sum equals 90 degrees.\r\n\r\nCPS:<\/strong>\u00a0 Short for cycles per second, used to measure frequency.\r\n\r\ncycle:\u00a0<\/strong> From the point in a waveform to where the waveform starts to repeat itself.\r\n\r\ndegree:<\/strong>\u00a0 One-three-hundred-and-sixtieth of the circumference of a circle.\u00a0 It is also the unit by which we measure angles.\r\n\r\ndesignate angle (or theta):<\/strong>\u00a0 An angle that you determine or is determined for you, and upon which triangle sides (adjacent<\/em>, hypotenuse<\/em>, opposite<\/em>) are named and dependent.\r\n\r\nelectromagnetic induction:<\/strong>\u00a0 When a voltage is created by passing a conductor through a magnetic field.\r\n\r\nequilateral triangle:\u00a0<\/strong> All three sides of this triangle are equal, and all three of its angles are equal too.\r\n\r\nfield poles:\u00a0<\/strong> The parts of an alternator that are either stationary (simple alternator) or rotating (practical alternator).\r\n\r\nfrequency:\u00a0<\/strong> The number of cycles can occur in one second.\u00a0 Frequency is measured in hertz or CPS (cycles per second).\r\n\r\nhertz (Hz):<\/strong>\u00a0 The unit used us measure frequency.\r\n\r\nhypotenuse:<\/strong>\u00a0 The side of a triangle that sits opposite<\/em> the right, or 90-degree, angle.\u00a0 It is always the longest side of the triangle.\r\n\r\nimaginary numbers:<\/strong>\u00a0 A term referring to components that don't really exist such as X and Y.\r\n\r\nimpedance:<\/strong>\u00a0 A total opposition to current flow determined by adding reactance to resistance using the Pythagoras' theorem.\r\n\r\nimpedance triangle:<\/strong>\u00a0 The triangle that is created when the resistance is added to the reactance.\r\n\r\nisosceles triangle:<\/strong>\u00a0 This triangle has two sides that are equal, and two angles that are equal.\r\n\r\nobtuse angle:<\/strong>\u00a0 An angle that is greater than 90 degrees.\r\n\r\nopposite:\u00a0<\/strong> The side of a triangle that sits\u00a0opposite<\/em>\u00a0to the designate angle.\r\n\r\npoint of origin:<\/strong>\u00a0 A reference point.\r\n\r\npolar form:<\/strong>\u00a0 An expression of vectors using magnitude and direction. See rectangular form.<\/em>\r\n\r\npractical alternator:\u00a0<\/strong> Has a stationary<\/em> conductor and the field rotates in order to maintain voltage.\u00a0 See simple alternator<\/em>.\r\n\r\nprime mover:<\/strong>\u00a0 The part of an alternator that spins the armature (simple) or the field (practical).\u00a0 Examples include combustion engine, hydro dam, hand crank and windmill.\r\n

Pythagorean theorem\/Pythagoras\u2019 theorem:<\/strong> A relation in Euclidean geometry among the three sides of a right triangle. It states that the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. In simple terms, this theorem says that you can figure out any side of a right triangle as long as you have the other two sides, using the equation:\r\nA2\u00a0<\/sup>+ B2\u00a0<\/sup>= C2\r\n<\/sup><\/p>\r\nquadrant<\/strong>: A circle cut into four parts.\r\n\r\nquadrature power:<\/strong>\u00a0 See reactive power<\/em>.\r\n\r\nreactance:<\/strong>\u00a0 The component that opposes current in an AC circuit.\u00a0 This runs 90 degrees to circuit resistance<\/em>.\r\n\r\nreactive power:<\/strong>\u00a0 The power that is present when current passes across the reactance.\u00a0 It is also known as wattless or quadrature power<\/strong>.\r\n\r\nrectangular form:<\/strong>\u00a0 An expression of vectors using X and Y coordinates. See polar form<\/em>.\r\n

resistance:<\/strong>\u00a0 The component that opposes current in a DC circuit.<\/p>\r\nresultant:<\/strong>\u00a0 The sum of the vectors.\r\n

right angle:\u00a0<\/strong> An angle that equals 90 degrees.<\/p>\r\nRPM:<\/strong>\u00a0 Short for rotations per minute, used to measure a machine's rotational speed.\r\n\r\nRPS:\u00a0<\/strong> Short for rotations per second.\r\n\r\nsimilar angles:\u00a0 <\/strong>These triangles each have different sized sides, but share the same sized angles.\u00a0 See practical\u00a0 alternator<\/em>.\r\n\r\nsimple alternator<\/strong>:\u00a0 When a conductor is formed into a loop and rotates<\/em> through a field to maintain voltage.\r\n\r\nslip rings:\u00a0<\/strong> The parts of an alternator that are made of brass.\u00a0 They rotate and either bring current to the load (simple alternator) or excitation to the field (practical alternator).\r\n\r\nsupplementary angles:\u00a0 <\/strong>Two angles whose sum equals 180 degrees.\r\n\r\ntheta:<\/strong>\u00a0 See designate angle<\/em>.\r\n\r\ntrigonometry:<\/strong>\u00a0 The study of the relationship that exists between the sides and the angles of a triangle.<\/span>\r\n\r\ntrue power:<\/strong>\u00a0 See active power<\/em>.\r\n\r\nvector:<\/strong>\u00a0 A quantity that possesses magnitude and direction.\r\n\r\nvectorially:<\/strong>\u00a0 Related to or involving vectors.\r\n\r\nwattless power:<\/strong>\u00a0 See reactive power<\/em>.\r\n\r\n<\/div>\r\n

<\/div>\r\n ","rendered":"
\n

active power:<\/strong>\u00a0 The power dissipated in the form of heat or light when dealing with a purely resistive circuit.\u00a0 It is also known as true power<\/strong>.<\/p>\n

acute angle:<\/strong>\u00a0 An angle that is less than 90 degrees.<\/p>\n

adjacent:<\/strong>\u00a0 The side of a triangle that sits\u00a0adjacent<\/em>\u00a0to the designate angle.<\/p>\n

angle:\u00a0 <\/strong>The space between two intersecting lines.<\/p>\n

armature:<\/strong>\u00a0 The part of an alternator where the voltage is induced on to. \u00a0It can be rotating (simple alternator) or stationary (practical alternator).<\/p>\n

brushes:\u00a0<\/strong> The parts of an alternator that are made of graphite carbon.\u00a0 They are stationary and either pass current to the load (simple alternator) or current to the field (practical alternator).<\/p>\n

complementary angles:<\/strong>\u00a0 Two angles whose sum equals 90 degrees.<\/p>\n

CPS:<\/strong>\u00a0 Short for cycles per second, used to measure frequency.<\/p>\n

cycle:\u00a0<\/strong> From the point in a waveform to where the waveform starts to repeat itself.<\/p>\n

degree:<\/strong>\u00a0 One-three-hundred-and-sixtieth of the circumference of a circle.\u00a0 It is also the unit by which we measure angles.<\/p>\n

designate angle (or theta):<\/strong>\u00a0 An angle that you determine or is determined for you, and upon which triangle sides (adjacent<\/em>, hypotenuse<\/em>, opposite<\/em>) are named and dependent.<\/p>\n

electromagnetic induction:<\/strong>\u00a0 When a voltage is created by passing a conductor through a magnetic field.<\/p>\n

equilateral triangle:\u00a0<\/strong> All three sides of this triangle are equal, and all three of its angles are equal too.<\/p>\n

field poles:\u00a0<\/strong> The parts of an alternator that are either stationary (simple alternator) or rotating (practical alternator).<\/p>\n

frequency:\u00a0<\/strong> The number of cycles can occur in one second.\u00a0 Frequency is measured in hertz or CPS (cycles per second).<\/p>\n

hertz (Hz):<\/strong>\u00a0 The unit used us measure frequency.<\/p>\n

hypotenuse:<\/strong>\u00a0 The side of a triangle that sits opposite<\/em> the right, or 90-degree, angle.\u00a0 It is always the longest side of the triangle.<\/p>\n

imaginary numbers:<\/strong>\u00a0 A term referring to components that don’t really exist such as X and Y.<\/p>\n

impedance:<\/strong>\u00a0 A total opposition to current flow determined by adding reactance to resistance using the Pythagoras’ theorem.<\/p>\n

impedance triangle:<\/strong>\u00a0 The triangle that is created when the resistance is added to the reactance.<\/p>\n

isosceles triangle:<\/strong>\u00a0 This triangle has two sides that are equal, and two angles that are equal.<\/p>\n

obtuse angle:<\/strong>\u00a0 An angle that is greater than 90 degrees.<\/p>\n

opposite:\u00a0<\/strong> The side of a triangle that sits\u00a0opposite<\/em>\u00a0to the designate angle.<\/p>\n

point of origin:<\/strong>\u00a0 A reference point.<\/p>\n

polar form:<\/strong>\u00a0 An expression of vectors using magnitude and direction. See rectangular form.<\/em><\/p>\n

practical alternator:\u00a0<\/strong> Has a stationary<\/em> conductor and the field rotates in order to maintain voltage.\u00a0 See simple alternator<\/em>.<\/p>\n

prime mover:<\/strong>\u00a0 The part of an alternator that spins the armature (simple) or the field (practical).\u00a0 Examples include combustion engine, hydro dam, hand crank and windmill.<\/p>\n

Pythagorean theorem\/Pythagoras\u2019 theorem:<\/strong> A relation in Euclidean geometry among the three sides of a right triangle. It states that the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. In simple terms, this theorem says that you can figure out any side of a right triangle as long as you have the other two sides, using the equation:
\nA2\u00a0<\/sup>+ B2\u00a0<\/sup>= C2
\n<\/sup><\/p>\n

quadrant<\/strong>: A circle cut into four parts.<\/p>\n

quadrature power:<\/strong>\u00a0 See reactive power<\/em>.<\/p>\n

reactance:<\/strong>\u00a0 The component that opposes current in an AC circuit.\u00a0 This runs 90 degrees to circuit resistance<\/em>.<\/p>\n

reactive power:<\/strong>\u00a0 The power that is present when current passes across the reactance.\u00a0 It is also known as wattless or quadrature power<\/strong>.<\/p>\n

rectangular form:<\/strong>\u00a0 An expression of vectors using X and Y coordinates. See polar form<\/em>.<\/p>\n

resistance:<\/strong>\u00a0 The component that opposes current in a DC circuit.<\/p>\n

resultant:<\/strong>\u00a0 The sum of the vectors.<\/p>\n

right angle:\u00a0<\/strong> An angle that equals 90 degrees.<\/p>\n

RPM:<\/strong>\u00a0 Short for rotations per minute, used to measure a machine’s rotational speed.<\/p>\n

RPS:\u00a0<\/strong> Short for rotations per second.<\/p>\n

similar angles:\u00a0 <\/strong>These triangles each have different sized sides, but share the same sized angles.\u00a0 See practical\u00a0 alternator<\/em>.<\/p>\n

simple alternator<\/strong>:\u00a0 When a conductor is formed into a loop and rotates<\/em> through a field to maintain voltage.<\/p>\n

slip rings:\u00a0<\/strong> The parts of an alternator that are made of brass.\u00a0 They rotate and either bring current to the load (simple alternator) or excitation to the field (practical alternator).<\/p>\n

supplementary angles:\u00a0 <\/strong>Two angles whose sum equals 180 degrees.<\/p>\n

theta:<\/strong>\u00a0 See designate angle<\/em>.<\/p>\n

trigonometry:<\/strong>\u00a0 The study of the relationship that exists between the sides and the angles of a triangle.<\/span><\/p>\n

true power:<\/strong>\u00a0 See active power<\/em>.<\/p>\n

vector:<\/strong>\u00a0 A quantity that possesses magnitude and direction.<\/p>\n

vectorially:<\/strong>\u00a0 Related to or involving vectors.<\/p>\n

wattless power:<\/strong>\u00a0 See reactive power<\/em>.<\/p>\n<\/div>\n

<\/div>\n

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