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The abbreviations AC and DC are often used to mean simply alternating and direct, respectively, as when they modify current or voltage. [ 1 ] [ 2 ] The usual waveform of alternating current in most electric power circuits is a sine wave , whose positive half-period corresponds with positive direction of the current and vice versa (the full ...
For example, at 60 Hz, a 2000 MCM (1000 square millimeter) copper conductor has 23% more resistance than it does at DC. The same size conductor in aluminum has only 10% more resistance with 60 Hz AC than it does with DC. [14] Skin depth also varies as the inverse square root of the permeability of the conductor. In the case of iron, its ...
In the book The Youngs: The Brothers Who Built AC/DC, author Jesse Fink quotes Phil Carson as saying that the release of Dirty Deeds was "one of the most crass decisions ever made by a record-company executive", [11] blaming A&R man Doug Morris and his New York City cohorts: At the time, Doug's argument was purely financial.
AC/DC were formed in the Australian pop music scene of the early to mid-1970s, [2] which is described as the third wave of rock music. [3] Many local 1960s artists – e.g., the Easybeats and the Masters Apprentices, had attempted to gain international recognition but achieved limited commercial success overseas and disbanded after returning to Australia.
A power converter is an electrical device for converting electrical energy between alternating current (AC) and direct current (DC). It can also change the voltage or frequency of the current. Power converters include simple devices such as transformers , and more complex ones like resonant converters .
AC/DC performed its first show on Dec. 31, 1973, at the Chequers Nightclub in Sydney and has since sold more than 200 million albums worldwide. The group was inducted into the Rock and Roll Hall ...
An HVDC thyristor valve tower 16.8 m tall in a hall at Baltic Cable AB in Sweden A battery charger is an example of a piece of power electronics. Power grid designer in front of a newly installed 880kV thyristor valve array A PCs power supply is an example of a piece of power electronics, whether inside or outside of the cabinet.
The war of the currents was a series of events surrounding the introduction of competing electric power transmission systems in the late 1880s and early 1890s. It grew out of two lighting systems developed in the late 1870s and early 1880s; arc lamp street lighting running on high-voltage alternating current (AC), and large-scale low-voltage direct current (DC) indoor incandescent lighting ...