Electrical Flashcards

1
Q

What is Electricity?

A

Electricity: A Fundamental form of energy, observable in positive and negative forms, that occurs naturally ( as in lightning) or is produced ( as in a generator), and that is expressed in terms of movement and interaction of electrons.

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2
Q

Amp ( or ampere)

A

The rate at which electrical power flows through a light, tool, or appliance. Large wires can carry more electricity than small wires. The amount of current flowing is called amperage.

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3
Q

Circuit

A

A continuous loop of electrical current flowing along a conductor ( typically wires or cable) from a power source to a neutral termination point.

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4
Q

Conductor

A

Any material that allows electrical current to flow through it. Copper wire is an especially good conductor.

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5
Q

Continuity

A

An uninterrupted electrical pathway through a circuit or a fixture. A continuity test establishes if current could flow through a circuit or fixture as it should.

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6
Q

Current

A

The Movement of electron along a conductor, like a wire.

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7
Q

Hot Wire

A

Any Wire that carries voltage. In an electrical circuit, the hot wire is usually covered with black or red insulation.

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8
Q

Line

A

Identified as carrying power. In terms of an electrical connection, a Line connection carries power to a device.

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9
Q

Load

A

Any Device that uses an electric current to perform a function (work). In terms of an electrical connection, a load connection is one where power departs to preform work.

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10
Q

Neutral Wire

A

A wire that returns current at zero voltage to the source of electrical power. Usually covered with white or light gray insulation.

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11
Q

Ohms

A

Quantifiable measurement of the ease if difficulty of electron flow through a substance. As the number of Ohms in a substance increases, the substances will become a better insulator. As the number of Ohms in a substance decreases, the substances will become a better conductor.

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12
Q

Overload

A

A demand for more current than the circuit wires or electrical device was designed to carry. Usually causes a fuse to blow or a circuit breaker to trip.

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13
Q

Power

A

The actual amount of electrical energy being consumed by an electrical device or circuit. Measurable as Wattage ( or Watts).

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14
Q

Voltage (or Volts)

A

A measurement of electricity in terms of pressure.

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15
Q

Wattage (or Watts)

A
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