DC Current vs AC Current Difference between Alternating Current and Direct Current

DC Current vs AC Current Difference between Alternating Current and Direct Current Direct (DC) current. Direct current (DC) is the unidirectional
flow of electric charge. Direct current is produced by sources such
as batteries, power supplies, thermocouples, solar cells, or dynamos. Direct current may flow in a conductor such
as a wire, but can also flow through semiconductors, insulators, or even through a vacuum as in
electron or ion beams.

The electric current flows in a constant direction,
distinguishing it from alternating current (AC). A term formerly used for this type of current
was galvanic current. The abbreviations AC and DC are often used
to mean simply alternating and direct, as when they modify current or voltage. Direct current may be obtained from an alternating
current supply by use of a rectifier, which contains electronic elements (usually) or
electromechanical elements (historically) that allow current to flow only in one direction.

Direct current may be converted into alternating
current with an inverter or a motor-generator set. Direct current is used to charge batteries
and as power supply for electronic systems. Very large quantities of direct-current power
are used in production of aluminum and other electrochemical processes. It is also used for some railways, especially
in urban areas.

High-voltage direct current is used to transmit
large amounts of power from remote generation sites or to interconnect alternating current
power grids. Alternating (AC) current. Alternating current (AC), is an electric current
in which the flow of electric charge periodically reverses direction, whereas in direct current
(DC, also dc), the flow of electric charge is only in one direction. AC is the form in which electric power is
delivered to businesses and residences, and it is the form of electric power that consumers
typically use when they plug kitchen appliances, televisions and electric lamps into a wall
socket.

A common example of DC power is a battery
cell in a flashlight. The abbreviations AC and DC are often used
to mean simply alternating and direct, as when they modify current or voltage. The usual waveform of alternating current
in most electric power circuits is a sine wave. In certain applications, different waveforms
are used, such as triangular or square waves.

Audio and radio signals carried on electrical
wires are also examples of alternating current. These types of alternating current carry information
encoded (or modulated) onto the AC signal, such as sound (audio) or images (video). These currents typically alternate at higher
frequencies than those used in power transmission. Thanks for watching My Learning Videos.

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