Flashcards
Theory One Terms
Flashcards do conjunto (31)
- 1Ammeteran instrument for measuring current (amps)
- 2Ampere (A)a unit of electrical current
ex. One volt across one Ohm of resistance causes one Ampere - 3Atomthe smallest particle of which an element may be divided and still retain the properties of the
element - 4Batterya DC voltage source consisting of 2 or more cells that convert chemical energy to electrical
energy - 5Circuita complete path for current flow
- 6Conductora material that offers little resistance to current flow
- 7Coulomban electrical charge equal to 6.25x10 to the 18 electrons. A common unit of quanity for
specifying the size of a given charge - 8Currentthe movement or flow of electrons in a circuit (I) is measured in amperes
- 9Electrona negatively charged particle that orbits a nucleus
- 10Insulatora material that offers resistance to current flow
- 11Joule (J)a unit that represents one newton meter Nm which is a measurement of doing work
- 12Kiloa prefix of 1000
- 13Matterany substance that has mass and occupies space
- 14Megaa prefix for 1 million 1megawatt equals 1 million watts
- 15Microa prefix to indicate 1 millionith
- 16Neutronselectrically neutral particles that have the same mass as a proton and are found in the nucleus
- 17Nucleusthe center of an atom it contains protons and neutrons
- 18OHMunit of measurement for resistance
- 19Ohm's Lawthe statement of the relationships among current, voltage and resistance in a circuit
Current (I) equals Voltage (E) divided by Resistance (R) - 20Powerthe rate of doing work or the rate at which energy is used or dissipated electrical power is
measured in Watts - 21Protonsthe smallest positively charged particle of an atom, located in nucleus
- 22Resistancean electrical property that opposes the flow of current through a circuit measured in OHMS
- 23Resistorany device in a circuit that resists the flow of electrons
- 24Schematica type of drawing in which symbols are used to represent the components in a system
- 25Series circuita circuit with only one path for current flow
- 26Valence shellthe outermost ring of electrons in an atom
- 27Volt (V)the unit of measurement for voltage, electromotive force. One volt is equivalent to the force
required to produce a current of one ampere through a resistance of 1 ohm - 28Voltage (E)the driving force that make current flow in a circuit electromotive force or potential
- 29voltage dropthe change in voltage across a component caused by current flowing through it and the amount
of resistance opposing it. - 30Voltmeteran instrument for measuring voltage the resistance of a voltmeter is fixed the current passing
through the meter directly proportional to the votage at the connection points - 31Watt (W)the basic unit of measurement for electrical power
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- apprentice Electrical FlashCards sobre Theory One Terms, criado por Todd Kinderman em 22-10-2016.
- Criado por
- Todd Kinderman
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