enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Watt - Wikipedia

   en.wikipedia.org/wiki/Watt

   Power is the rate at which energy is generated or consumed and hence is measured in units (e.g. watts) that represent energy per unit time. For example, when a light bulb with a power rating of 100 W is turned on for one hour, the energy used is 100 watt hours (W·h), 0.1 kilowatt hour, or 360 kJ. This same amount of energy would light a 40 ...

3. Electric power - Wikipedia

   en.wikipedia.org/wiki/Electric_power

   Electric power is the rate of transfer of electrical energy within a circuit.Its SI unit is the watt, the general unit of power, defined as one joule per second.Standard prefixes apply to watts as with other SI units: thousands, millions and billions of watts are called kilowatts, megawatts and gigawatts respectively.

4. Electricity - Wikipedia

   en.wikipedia.org/wiki/Electricity

   Electric power is the rate at which electric energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second. Electric power, like mechanical power, is the rate of doing work, measured in watts, and represented by the letter P. The term wattage is used colloquially to mean "electric power in watts."

5. Orders of magnitude (power) - Wikipedia

   en.wikipedia.org/wiki/Orders_of_magnitude_(power)

   tech: the power consumption of a typical household fluorescent tube light: 6 × 10 1: tech: the power consumption of a typical household incandescent light bulb: 10 2: hecto-(hW) 1 × 10 2: biomed: approximate basal metabolic rate of an adult human body [16] 1.2 × 10 2: tech: electric power output of 1 m 2 solar panel in full sunlight (approx ...

6. Power (physics) - Wikipedia

   en.wikipedia.org/wiki/Power_(physics)

   Power is the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt, equal to one joule per second. Power is a scalar quantity.

7. Kilowatt-hour - Wikipedia

   en.wikipedia.org/wiki/Kilowatt-hour

   Work is the amount of energy transferred to a system; power is the rate of delivery of energy. Energy is measured in joules, or watt-seconds. Power is measured in watts, or joules per second. For example, a battery stores energy. When the battery delivers its energy, it does so at a certain power, that is, the rate of delivery of the energy.

8. Volt-ampere - Wikipedia

   en.wikipedia.org/wiki/Volt-ampere

   Some devices, including uninterruptible power supplies (UPSs), have ratings both for maximum volt-amperes and maximum watts. A common prefixed derived unit is "kilovolt-ampere" (symbol kVA). The VA rating is limited by the maximum permissible current, and the watt rating by the power-handling capacity of the device.

9. Units of energy - Wikipedia

   en.wikipedia.org/wiki/Units_of_energy

   A unit of electrical energy, particularly for utility bills, is the kilowatt-hour (kWh); [3] one kilowatt-hour is equivalent to 3.6 megajoules. Electricity usage is often given in units of kilowatt-hours per year or other periods. [4] This is a measurement of average power consumption, meaning the average rate at which energy is transferred ...