An electric current that reverses its direction at regularly recurring intervals.

(AC) Flow of electricity that constantly changes direction between positive and negative sides. Almost all power produced by electric utilities in the United States moves in current that shifts direct [..]

Electric current that reverses direction many times per second.

Electricity that changes direction periodically. The period is measured in Cycles per Second (Hertz, Hz). 

Alternating current is the common form of electricity that we get in the United States when we plug an appliance into the wall. The form of electricity we get from flashlight batteries is known as direct current. Technically speaking: Alternating current is an electrical current for which the current direction, or positive to negative flow (known a [..]

A periodic current, the average value of which over a period is zero. Typically refers to a current that reverses its direction at regularly recurring intervals of time and that has alternatel [..]

An electric current that reverses its direction at regularly occurring intervals. Homes have AC. ACID

Alternating current is a form of electricity in which the current alternates in direction (and the voltage alternates in polarity) at a frequency defined by the generator (usually between 50 and 60 times per second, ie, 50 - 60 hertz). AC was adopted for power transmission in the early days of electricity supply because it had two major advantages [..]

an electric current that reverses its direction at regularity occurring intervals. Homes have A.C.

Alternating Current is an electricity supply that periodically reverses its direction of current flow. Mains electricity is an example of an AC electricity supply.

An electric current that continually reverses its direction giving a definite plus and minus wave form at fixed intervals.

An electric current that reverses direction of flow at regular intervals and has alternately positive and negative values.

Electric current produced by constantly changing the voltage from positive to negative to positive, and so on.

The electric current that changes its direction periodically.

Current that changes its direction of flow through a conductor, going first one way, then the other. The usual rate used is 60 alternations (60 times each way) per second. AMPERE (AMP):

Electric current in which the direction of flow is reversed at frequent intervals--usually 100 or 120 times per second (50 or 60 cycles per second or 50//60 Hz).

An electric current that continually reverses its direction giving a definite plus and minus wave form at fixed intervals.

Current flowing from zero to a positive maximum and then back to zero, flows down again to a negative maximum to return back to zero.  

The type of current used in household wiring. The current changes polarity, or alternates, continually from positive to negative and back again at the rate of 60 times a second (referred to as hertz)

Electrical current flow, usually generated by the utilities at 60 Hz, which continuously reverses direction in the middle of its cycle. Mathematically, it follows a sine wave; it travels from zero, then reaches a maximum in one direction, decreases to zero, then reverses to reach a maximum in the opposite direction.

The commonly available electric power supplied by an AC generator and distributed in one, two, and three phase form.

An electric current that has one direction during one part of a generating cycle and the opposite direction during the remainder of the cycle.

An electric current that first moves one direction, then the opposite direction with a regular frequency

Electrical current that continually changes direction (as opposed to direct current (d.c.)) In the UK, mains electricity is a.c., with a frequency of 50 Hz and an r.m.s voltage of 230 V.

UE, EM Electrical current continually changes direction in an a.c. power supply (as opposed to direct current (d.c.)) In the UK, mains electricity is a.c., with a frequency of 50 Hz and an r.m.s vol [..]

A flow of electric charge that regularly reverses direction (Lesson 23)

Electricity that changes direction periodically. The period is measured in Cycles per Second (Hertz, Hz).

 - An electric current that reverses direction at regular intervals, having a magnitude that varies continuously in a sinusoidal manner.

An electric current that reverses directions at regular intervals (typically 60 times a second); abbreviated "AC." This current found in homes.

    (AC) a current which is continually changing its value and direction in a regular fashion. Usually it means a current which can be described by the equation: i = io sin(2p f t) (a "sinusoidal" current) in which i is current, io is a constant called the amplitude of the current, t is time and f is the frequency of the current. [..]

Electric current that reverses directions at regular intervals.

Term applied to an electric current or voltage that reverses its direction of flow at regular intervals and has alternately positive and negative values, the average value of which over a period of ti [..]

A form of electrical current, in which the direction of the flow of electrons changes back and forth at regular intervals. The electricity grid and most everyday household appliances use Alternating Current (AC).

The flow of electricity that constantly changes direction between positive and negative sides. Almost all power produced by electric utilities in the United States moves in current that shifts directi [..]

Electric current, which changes direction with a regular frequency. Domestic mains in the UK have a frequency of 50 Hertz.

Electric current that reverses direction, usually many times per second. Most electrical generators produce alternating current.

 An electric current which changes direction and strength in a rhythmically repeating cycle.

The type of electrical power supplied by utilities. This form of electricity has a current that reverses direction at regular intervals. This is the most common type of household electricity. In the U [..]

An electric current that reverses direction of flow at regular intervals and has alternately positive and negative values.

Electric current in which the electrons periodically and rapidly change direction.

A current that flows alternately in one direction and then in the reverse direction. In North America, the standard for alternating current is 60 complete cycles each second. Such electricity is said [..]

A type of electrical current.

electricity delivered by U.S. utilities at 60 Hz, and 120 volts.

A flow of electrons which reverses its direction of flow at regular intervals in a conductor.

The type of electrical power supplied by the power utility. The unique characteristic of this form of electricity is that it reverses direction at regular intervals. For example, 120 Vac 60 Hz power r [..]

An electrical current whose electrons flow briefly in one direction to a peak before dropping back to zero and then flowing in an alternative direction before repeating itself. The waveform created is [..]

Electrical current that alternates the direction of its flow in cycles. The grid supplies AC electricity at a frequency of 50Hz in all Australian states which means that the peak value of the sine wav [..]

An electric current that reverses its direction at regularly recurring intervals, such as that used to provide electric service to electric utility customers.

a flow of electricity which reaches maximum in one direction, decreases to zero, then reverses itself and reaches maximum in the opposite direction. The cycle is repeated continuously. The numbe [..]

The standard type of electricity in homes and the most effective way of powering an EV. In an AC circuit, the voltage swings between positive and negative meaning current flows in both directions.

The type of electricity supplied by the utility company. The unique characteristic of this form of electricity is that it reverses direction at regular intervals.

An electric current that reverses its direction at regularly recurring intervals.

(AC) electrical current which constantly reverses direction and polarity.

Flow of electricity that constantly changes direction between positive and negative sides. Almost all power produced by electric utilities in the United States moves in current that shifts direction at a rate of 60 times per second. (SOURCE: California Energy Commission, http://www.consumerenergycenter.org)

Current flow of electric charge that periodically reverses direction, typically 50 or 60 Hz.

an electrical current which reverses direction repeatedly due to a change in voltage which occurs at the same frequency. Often abbreviated AC or ac.

A type of electricity measured according to its cycles. An electrical current is able to complete many cycles per second, and is then given its frequency rating based on that number. AC power is the t [..]

     Current from a power source that changes polarity periodically. 

Current which varies from zero to a positive maximum to zero to a negative maximum to zero, a number of times per second, the number being expressed in cycles per second of Hertz (HZ)American Public P [..]

A current flow whose direction changes in regular cycles.

The type of mains electricity used in the UK having a cyclical current waveform. Normally used in UK houses at 240V (RMS) alternating at 50 times per second (50 hertz).

A current that flows alternately in one direction and then in the reverse direction. In North America, the standard for alternating current is 60 complete cycles each second. Such electricity is said [..]

 Electrical current that periodically reverses direction, usually several times per second.

A continuously changing magnitude of current, produced by a power source (e.g., generator, alternator).

Electric current that reverses direction periodically, usually many times per second.

Electric current which changes direction with a regular frequency. Domestic mains in the UK have a frequency of 50 Hertz.

Alternating Current. Typical power source that comes 'out of the wall'. Single phase and three phase are standard. In the USA the standard values are 120VAC single phase and 240VAC three pha [..]

A flow of electric charge that changes direction twice per period. It is produced by an alternator, which is a coil in a rotating magnetic field.

Electric current which changes direction with a regular frequency. Domestic mains in the UK have a frequency of 50 Hertz.

A continuous electric current that periodically reverses direction, usually sinusoidal.

A flow of electricity through a conductor that continuously reverses its direction of flow. Each change is called a cycle. The number of cycles during a given time period is called frequency. The standard frequency in the U.S. is 60 cycles per second (60 hertz) – current flows in a standard, alternating current circuit changes direction 60 times ev [..]

An electric current that reverses direction at regular intervals. Abbreviated as AC.

The cyclical flow of electrical current, reversing direction as it flows. It is the type of electrical current provided by utility companies.

A type of electrical current that reverses directions at regular recurring intervals or cycles. In North America, the standard is 60 cycles, or 60Hz per second. 

An alternating current is the movement of an electric charge that periodically reverses direction. This is compared to the flow of electric charge in direct current, which moves in only one direction. [..]

The flow of electricity (electric current) in a circuit that frequently alternates direction every second. In the USA, the standard frequency of alternating current is 60 Hz (hertz or cycles/second) and AC (as opposed to direct current) is generally the method for delivering electric power to homes and buildings.

Electric current that reverses direction in a conductor with constant frequency.

Electricity which flows in opposite directions, alternating at a certain rate (Hz). As supplied by power companies, AC in the United States alternates 60 times per second and is deemed as 60 Hz power. [..]

(AC) An electric current that first flows one way in the circuit and then the other at regularly recurring intervals. This is the type used in homes. It contrasts with direct current. It is also the t [..]

electric current that reverses direction at regularly recurring intervals of time, typically 60 Hz in the US and 50 Hz in the UK. Official abbreviation is ac, but AC is commonly used. Contrast with di [..]

current that reverses its direction at regular intervals, such as a common 115 volt circuit.

An electric current that reverses its direction at regularly recurring intervals, e.g., the typical household current.  It is expressed in cycles per second (Hertz (Hz)).

Alternating current is a flow of electric charge that periodically changes direction from positive to negative. Alternating current requires an AC Power supply, such as a generator. AC parameters incl [..]

An electric current that reverses its direction (positive/negative values) at regular intervals.

A current (and therefore voltage) that varies over time. Typical power supplies oscillate as sine waves at either 60Hz or 50Hz. Technically, at 60 Hz the current is reversing direction 60 times per se [..]

(or AC)

Electrical current which alternates direction periodically. (For instance, household electric current is AC alternating at 60 oscillations/sec (60 Hertz) in the United States, and 50 Hertz in many other countries.) Acronym: AC (09 Oct 1997)

A type of current that alternates from positive to negative at regular intervals. AC is the standard type of current used in electrical distribution systems by utility power companies due to the ease [..]

Flow of electricity that constantly changes direction between positive and negative sides. Electricity produced in the UK moves in current that shifts direction at a rate of 50 times per second (50 Hertz, 50Hz).

The type of electricity that comes from a wall outlet (AC), as opposed to direct current (DC).

Describes electric energy flow that periodically reverses direction. In the US, the electric power standard is AC that reverses direction 60 times per second. This is described as 60 Hertz or 60 Hz. 5 [..]

Electric current

An electric current that rises to a maximum in one direction, falls back to zero and then rises to a maximum in the opposite direction and then repeats.

A current whose polarity alternates from positive to negative over time. The rate of such "alternations" is measured in cycles per second - more commonly known as Hertz (Hz)

A current whose polarity alternates from positive to negative over time. The rate of such "alternations" is measured in cycles per second - more commonly known as Hertz (Hz)

currents that have a harmonic time dependence.

An electric current that reverses direction at regular intervals. Measured in Volts AC at Hertz, example: 110 volts AC 60 Hz.

The frequency controlled oscillating flow of current over a transmission/distribution line which allows for relatively simple conversion of power between different voltage levels. Most electric system [..]

An electrical current that reverses its direction at regularly recurring intervals. Abbreviated to AC.

AC is the pulsating, alternatively positive and negative polarity current supplied to homes and businesses by the local utility company. U.S. AC power changes polarity 60 times per second; each cycle is called a "hertz." Hence, U.S. AC current is known as 60-Hz power. Other countries in Europe and the Far East use 240-volt AC (VAC) at 50 [..]

The type of electricity that comes from a wall outlet (AC), as opposed to direct current (DC).

Electric current which flows back and forth in a circuit.

[AC] An electrical current that constantly changes amplitude and changes polarity at regular intervals, usually 100 or 120 times per second (50 or 60 cycles per second or 50//60 Hz).

Electric current in which the direction of the current alternates or reverses. In a 60 Hertz (cycle) current, the direction of current flow reverses in 1/120th of a second; most commonly used current.

A current whose instantaneous values reverses in regularly recurring intervals of time and which has alternative positive and negative values, the cycle being repeated continuously. The term is commonly used to refer to sinusoidal waveforms.

Alternating current (AC) is an electric current which periodically reverses direction and changes its magnitude continuously with time in contrast to direct current (DC) which flows only in one direct [..]

Alternating current (AC) is an electric current which periodically reverses direction and changes its magnitude continuously with time in contrast to direct current (DC) which flows only in one direct [..]