Power

A serious and reliable measure of the power output of an audio amplifier, or the power handling of a loudspeaker is average power, commonly called watts RMS. RMS stands for root mean square and is actually a misnomer here but has nonetheless become the common term. The "RMS" power is found by averaging the instantaneous power output over a long period of time, so it is actually the average power or mean power. The term RMS is used due to the fact that the mean power is calculated from the RMS voltage and current (or one of them and the impedance). ...more on Wikipedia about "Audio power"

In radio telecommunications, effective radiated power or ERP is determined by subtracting system losses from system gains. ERP is typically applied to antenna systems. For example, if an antenna system has +9 dB gain and −6 dB loss, its ERP is +3 dB over the transmitter power output (TPO). ...more on Wikipedia about "Effective radiated power"

In electronics, the term low-power means one of two things about a device: ...more on Wikipedia about "Low-power"

Nominal power is a measurement of a mediumwave radio station's output used in the United States. AM broadcasters are licensed by the Federal Communications Commission to operate at a specific nominal power, which may be (and usually is) different from the transmitter power output. ...more on Wikipedia about "Nominal power"

* ~10 zW - Tech: approximate power of Galileo space probe's radio signal (when at Jupiter) as received on earth by a 70 meter DSN antenna. ...more on Wikipedia about "Orders of magnitude (power)"

(P.M.P.O) The upper case letter combination PMPO is the invented abreviation for Peak Music Power Output.
...more on Wikipedia about "P.M.P.O"

In physics, power (symbol: P) is the amount of work done per unit of time. This can be modeled as an energy flow, equivalent to the rate of change of the energy in a system, or the time rate of doing work, ...more on Wikipedia about "Power (physics)" Must see shortopedia shortopedia

In electrical engineering, power consumption refers to the electrical energy over time that must be supplied to an electrical device to maintain its operation ...more on Wikipedia about "Power consumption"

Power-to-weight ratio is a measure commonly used when comparing various vehicles (or engines), including automobiles, motorcycles, aircraft, and armoured fighting vehicles. It is, simply, the power the engine develops, divided by the vehicle's (or engine) weight. ...more on Wikipedia about "Power-to-weight ratio"

Pulsed power is the term used to describe the science and technology of accumulating energy over a relatively long period of time and releasing it very quickly thus increasing the instantaneous power. ...more on Wikipedia about "Pulsed power"

Sound power or acoustic power Pac is a measure of sonic energy E per time t unit.
...more on Wikipedia about "Sound power"

Specific fuel consumption, often shortened to SFC, is an engineering term that is used to describe the fuel efficiency of an engine design. It measures the amount of fuel needed to provide a given power for a given period. ...more on Wikipedia about "Specific fuel consumption"

In engineering, specific power (sometimes also power per unit mass or power density) refers to the amount of power delivered by an energy source, divided by some measure of the source's size or mass. It is used to compare various power sources by a common figure representing their suitability for a particular role. ...more on Wikipedia about "Specific power"

Transmitter power output (TPO) is the actual amount of power (in watts) of RF energy that a transmitter produces at its output. This is not the amount of power that a broadcast station reports as its ERP, such as "we're 100,000 watts of rock 'n' roll", but is in fact many times less for the high-power VHF and UHF stations. The radio antenna's design "magnifies" the signal toward the horizon, creating gain. There is also some loss (negative gain) from the feedline, which reduces some of the TPO to the antenna by both resistance and by radiating a small part of the signal. ...more on Wikipedia about "Transmitter power output"

This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia . Direct links to the original articles are in the text.
If you use exact copy or modified of this article you should preserve above paragraph and put also : It uses material from the Shortopedia article about "Power".
MAIN PAGE MAIN INDEX CONTACT US