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What is a word that means unit of electrical energy which is a 1000 watts of power used for one hour?
Wiki User
∙ 13y ago
Kilowatt hour
Wiki User
∙ 13y ago
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Is the length of time an electrical load is on proportional to power or energy?
Power (watts) is amperes times voltage, or joules per second. Energy is joules, or watt-seconds. The length of time an electrical load is on is proportional to energy, not power.
What unit is used to express electrical power?
Electrical power is also measured in Watts.
Electrical power is expressed in watts or?
Electrical power is expressed in watts or in jouls per secondAnother AnswerThere is no such thing as 'electrical power'. Power is simply a rate: the rate of doing work. Power can be measured in watts (in the SI system) or in horsepower (in the Imperial system). There is no reason why the power of a heater can't be measured in horsepower or the power of a car can't be measured in watts.
What is electrical power the combination of?
Watts = Amps x Volts.
Rate at which electrical energy is converted to another type of energy?
The rate at which an appliance takes energy from the electrical outlet and spinsthe electric meter is the "power" shown on the data label, usually on the backor the bottom of the appliance.The rate at which it actually converts the energy into the form required to do itsjob is also a "power" figure. This one is always less than the power taken fromthe wall outlet, and is not always stated or marked on the appliance.A couple of cases where it is clearly stated:-- Microwave Oven: " 600 Watts of Cooking Power "The microwave oven is using perhaps 1,500 to 2,000 watts from the electric company,converting some of it into radio waves (with less than 100% efficiency), and delivering600 watts of microwave radiation to the cooking chamber.-- Blow Drier: " 1,250 Watts of Drying Power "The blow drier is using perhaps 1,500 watts from the electric company, anddelivering useful energy at the rate of 1,250 watts, in form of a hot coil anda strong little fan motor to blow air across the coil.But on an electric stove, furnace, blender, food processor, fan, telephone, TV,computer, vacuum, washer, dryer, etc., you can find the power consumptionmarked somewhere on it, but it's not clear exactly where that power goes.
What sort of energy is associated with watts and volts?
Electrical energy/power is associated with watts and volts.
What is the symbol for potential energy?
Electrical power is measured in Watts, or multiples of Watts, like kilowatts or megawatts. Electrical energy is power x time, usually kilowatthours or megawatthours.(kWh or MWh)
How does watt effect power?
A Watt is a pure measurement of energy. The amount of electrical energy (watts) is determined by the formula "Amps X Volts = Watts". Electrical energy (watts) can be converted directly into heat or into horsepower or some other intermediate form.
What is the equation for energy transferred by an electrical appliance?
Energy = power x time. If power is in watts, and time in seconds, energy will be in joules.
What is the difference between Watts and Kilowatt hours?
Watts is smaller than kilowatts. watts is unit of power and kilowatts hour is unit of energy. Electrical devices are specified in watts where as electrical bill is for kilowatt hr use.
What does conversion of electrical power to mechanical power mean?
There is no such thing as 'electrical power' or 'mechanical power' or, in fact, any other sort of power. Power is simply a rate -the rate of doing work. In SI, power is measured in watts. An obsolete unit of power is a horsepower. Although, in the Unites States, the power of an engine is usually measured in horsepower, elsewhere it is measured in watts (or, more usually, kilowatts).So, when an engineer describes converting electrical power to mechanical power, what he actually means is the rate of converting electrical energy to mechanical energy.
How much energy does a 5 watt light bulb produce?
None. But it does convert 5 watts of electrical power (energy per unit time) into 5 watts of [light + thermal] power.
Is the length of time an electrical load is on proportional to power or energy?
Power (watts) is amperes times voltage, or joules per second. Energy is joules, or watt-seconds. The length of time an electrical load is on is proportional to energy, not power.
How many joules of light energy are in 1440 watts of electrical energy?
A joule is a joule, whether it be electrical energy or light energy - although commonly, lamps are not 100% efficient.On the other hand, you can't convert joules directly to watts. Watts means joules per second (joules / second), or equivalently, joules is watts times seconds.A joule is a joule, whether it be electrical energy or light energy - although commonly, lamps are not 100% efficient.On the other hand, you can't convert joules directly to watts. Watts means joules per second (joules / second), or equivalently, joules is watts times seconds.A joule is a joule, whether it be electrical energy or light energy - although commonly, lamps are not 100% efficient.On the other hand, you can't convert joules directly to watts. Watts means joules per second (joules / second), or equivalently, joules is watts times seconds.A joule is a joule, whether it be electrical energy or light energy - although commonly, lamps are not 100% efficient.On the other hand, you can't convert joules directly to watts. Watts means joules per second (joules / second), or equivalently, joules is watts times seconds.
Is the unit used to measure electric power?
Watts. Also for any other type of power (energy / time), that is, for transfer of energy that is not electrical in nature.
Why are electrical devices represented in watts?
A Watts is a measurement of power or energy usage represented by W. When you see this on an electrical device, say a sticker on an appliance, it tells you how much energy it will use in watts, or Joules per hour. This allows the consumer to compare similar appliances based on energy usage.
How many Joules of electrical energy does a 100 Watt light bulb consume from the electrical supply in 2 seconds?
Watt means joules/second. It refers to the amount of energy a device uses, in this case. Multiply the power (in watts) by the time (in seconds) to get the energy (in joules).
