Based on this definition, the drain efficiency cannot exceed 25 % for a class A amplifier that is supplied drain bias current through resistors ( because RF signal has its zero level at about 50 % of the input DC ).

While the voltage level is above the DC rail current is supplied by the inductor.

* Owen Mercer, the current Captain Boomerang in the DC Comics universe, nicknamed " Boomer "

direct current | DC plasma physics | plasma ( violet ) enhances the growth of carbon nanotubes in laboratory-scale PECVD apparatus

The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.

Direct current ( DC ) is the unidirectional flow of electric charge.

In direct current ( DC, also dc ), the flow of electric charge is only in one direction.

Rectifiers are constructed from diodes, where they are used to convert alternating current ( AC ) electricity into direct current ( DC ).

* List of current DC Comics publications

In engineering or household applications, current is often described as being either direct current ( DC ) or alternating current ( AC ).

Electrical networks that consist only of sources ( voltage or current ), linear lumped elements ( resistors, capacitors, inductors ), and linear distributed elements ( transmission lines ) can be analyzed by algebraic and transform methods to determine DC response, AC response, and transient response.

Ideal Independent Source maintains same voltage or current regardless of the other elements present in the circuit. Its value is either constant ( DC ) or sinusoidal ( AC ).

Oscillators convert direct current ( DC ) from a power supply to an alternating current signal.

Using inputs such as input voltage, output voltage, output current, frequency, ambient temperature, and inductance these calculators can predict the losses of the inductors core and AC / DC based on the operating condition of the circuit being used.

Another method to control the inductance without any moving parts requires an additional DC current bias winding which controls the permeability of an easily saturable core material.

Some proprietary applications, such as phantom-powered footswitch controllers, use the spare pins for direct current ( DC ) power transmission.

Model railway engines are generally operated by low voltage direct current ( DC ) electricity supplied via the tracks, but there are exceptions, such as Märklin and Lionel Corporation, which use alternating current ( AC ).

The power conditioning system uses an inverter / rectifier to transform alternating current ( AC ) power to direct current or convert DC back to AC power.

It was on September 4, 1882, that Edison switched on his Pearl Street generating station's electrical power distribution system, which provided 110 volts direct current ( DC ) to 59 customers in lower Manhattan.

A semiconductor diode is thus commonly used as a noise source by passing a particular DC current through it.

An on-line UPS uses a " double conversion " method of accepting AC input, rectifying to DC for passing through the rechargeable battery ( or battery strings ), then inverting back to 120 V / 230 V AC for powering the protected equipment.

Gaiman mentioned his treatment in passing to DC editor Karen Berger.

Unusually, Bakerloo line trains joining or leaving the Watford DC Line do so by passing through the carriage shed on one of the two outer roads.

Mayer subsequently moved to Washington, DC in June of that year, and spent every day for the next few months displaying large plywood signs in front of the White House and proselytizing to passing tourists.

In its present-day form, the southbound Crescent leaves New York in mid-afternoon and Washington DC in the early evening, passing through the Carolinas overnight for arrival at breakfast-time in Atlanta, lunch-time in Birmingham, and early evening at New Orleans.

) After the Barney Circle Freeway plan was canceled in 1996, a left-turn movement was added at the interchange between Pennsylvania Avenue and DC 295, allowing traffic coming from I-695 to cross the Anacostia on Pennsylvania Avenue and join DC 295 directly, albeit passing through two traffic signals.

Following Carbonaro's passing, DC Comics obtained the rights to the T. H. U. N. D. E. R.

The line is electrified at 1500V DC throughout, and is primarily double track, although there are passing loops at Hawkesbury River, Gosford, Wyong, Awaba, and Sulphide Junction ( between Cockle Creek and Cardiff ).

The character later appeared in some publications by DC Comics when DC Comics bought the rights to the character in 1956, along with a bulk buy of all Quality Comic's characters, although Madame Fatal not been seen much since except a few brief appearances and passing mentions by other comic book characters.

The letters " DC " were rendered in a block-like typeface that would remain through later logo revisions until 2005.

* Kenya is represented in Mexico through its embassy in Washington, DC.

She later directed Blanchett in A Streetcar Named Desire ( play ) at the Sydney Theatre Company in Australia, which ran September through October 2009, and then continued from 29 October to 21 November 2009 at the Kennedy Center for the Performing Arts in Washington, DC, where it won a

* Different Avenues Community Organizing for sex workers rights through Reproductive Justice, organizing by and for sex workers of color, based in Washington, DC

DC had the advantage that large battery banks could maintain continuous power through brief interruptions of the electric supply from generators and the transmission system.

The DC current through the resistor-coil branch has no effect on the incoming audio signal.

Exchange operation soon resulted in telephones being equipped with a bell in a ringer box, first operated over a second wire, and later over the same wire, but with a condenser ( capacitor ) in series with the bell coil to allow the AC ringer signal through while still blocking DC ( keeping the phone " on hook ").

When a direct current ( DC ) flows through the coil, the coil generates a magnetic field.

The first AVO was put on sale in 1923, and although it was initially a DC, many of its features remained almost unaltered through to the last Model 8.

Polyester film capacitor s, commonly used for coupling between two circuits. In analog circuits, a coupling capacitor is used to connect two circuits such that only the AC signal from the first circuit can pass through to the next while DC is blocked.

The high-frequency resistance is inversely proportional to the DC bias current through the diode.

For example, the voltage across a DC voltage source is constant as is the current through a DC current source.

It ranges from the layout of entire cities, as with l ' Enfant's plan for Washington DC, Griffin and Mahony's plan for Canberra and Doxiadis ' plan for Islamabad ( although such opportunities are obviously rare ), through ' managing the sense of a region ' as described by Kevin Lynch, to the design of street furniture.

* Since DC cannot flow through the capacitor, DC input must " flow out " the path marked ( analogous to removing the capacitor ).

* The Potomac River, which flows through West Virginia, Maryland, Virginia, and Washington, DC

* The electro-rock band Judge Rock pays homage to Crisis in their 2012 song Westerner, in which Jonah Hex, Bat Lash, Nighthawk ( DC Comics ), Johnny Thunder and Scalphunter ( DC Comics ) appear, along with the alien abduction taking them through time in episode three of the Crisis comic-book.

Southern Conservatives have, unsurprisingly, strenuously opposed restoring full voting rights to Washington, DC citizens ' through various legislation.