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What unit of electrical power is used to measure how fast electrical energy is used?
Wiki User
∙ 12y ago
Lots of units are used to measure electricity, depending on what aspect you want to measure. For example:
Voltage is measured in volts
Current is measured in amperes
Resistance (as well as impedance) is measured in ohms
Power is measured in watts
Capacitance is measured in coulomb
Inductance is measured in henries
etc.
Wiki User
∙ 10y ago
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What is electrical measurement?
Electric power (how fast energy is being converted into or out of electrical energy) is measured in Watts. Electrical energy is measured in Joules. i Watt for 1 second is 1 Joule. 1000 Watts for 3600 seconds is 3.6 Megajoules, also known as a kilowatt-hour or a Unit of electrical energy.
What is the difference between a unit and a watt of electricity?
A Unit is a measure of energy used in billing.A Watt is a measure of power, which is how fast energy is converted.Energy equals power times time, so 1 watt for 1 second defines 1 Joule of energy.A Unit is a kilowatt-hour of energy, so 1000 watts for 3600 seconds, 3.6 million Joules.Another AnswerA 'unit' is derived from the expression, 'Board of Trade Unit'. The Board of Trade was the now-defunct Government body which regulated energy prices in the UK. A unit is exactly equivalent to a kilowatt hour, the unit of measurement of energy used by utility companies to charge consumers.A 'watt' is used to measure the rate at which energy is delivered, and is equivalent to a joule per second (where the joule is the SI unit of measurement for energy).
What is the watts equivalent of 231000 joules?
231,000 joules is an amount of energy, while watts are a measure of how fast energy is used or converted. 231,000 joules could be used by 1 watt running for 231,000 seconds, or 231 watts running for 1000 seconds, etc. Energy = power x time, so 1000 watts for 231 seconds is an amount of energy equal to 231,000 joules.
Are watts and amps the same measurement?
No they are not. Voltage measures the potential difference between two conductors, while watts are a meaure of power, which means the rate at which energy is used. In an electrical circuit the power in watts is the voltage times the current in amps. So in a car with a 12 v system, a 6-watt bulb draws ½ an amp, while a 60 watt bulb draws 5 amps.
How many watts is needed to melt one pound of aluminum?
How fast the energy is provided (power, in joules/second or watts) is irrelevant, as long as not too much energy gets radiated away. What you really need to know is how much energy (in joules) is needed.
What are short fast transfers of electrical voltage current or energy?
Power Spikes
How can you measure how fast you work?
power
What is electrical measurement?
Electric power (how fast energy is being converted into or out of electrical energy) is measured in Watts. Electrical energy is measured in Joules. i Watt for 1 second is 1 Joule. 1000 Watts for 3600 seconds is 3.6 Megajoules, also known as a kilowatt-hour or a Unit of electrical energy.
What is the difference between power and electricity?
I think you probably mean between power and current? The electrical state of a circuit is expressed in volts and amps. The power is given by (volts x amps) and is in Watts. ---- Power is a measure of how fast work is being done or how fast energy is being expended. For example, you must produce more power to ride a bike at 20 mph than you do to ride it at 5 mph. Common measurements of power are watts and horsepower. Electricity is movement of electrons. Electricity is commonly used to move energy from one place to another.
How many watts are 4680000000joules?
Watts are a measure of power, Joules are a measure of energy. The energy is equal to the power times the time. So if you have a power of 5 watts running for 7 seconds, that is 5x7 Joules of energy, or 35 Joules. Looked at another way, power measures how fast energy is converted. So 35 Joules converted in 7 seconds would be 5 watts of power, but it would need 35 watts to convert that energy in 1 second.
How many units of electric in a kilowatt?
Units of electricity as given on power bills are usually measured in kiloWatt hours. (kW.h) This is a kiloWatt of energy delivered for a period of an hour. It is a unit of power, and a kiloWatt is a measure of energy.
What is the unit for measuring electrical power?
Electrical power is measured in watts.AnswerPower is measured in watts. There is no such thing as 'electrical power' as power is simply a rate.voltThe basic unit of electrical power is the watt. If the power is very large, then kilowatts (thousands of watts) or megawatts (millions of watts) are also used.Power is simply a rate, so you cannot really have 'electrical' power, 'mechanical' power, etc. In the SI system of measurements, power is measured in watts (W).Electric power is usually measured in watts, kilowatts, or sometimes megawatts. One watt is equal to one volt-ampere or one joule per second.Electric power is the rate at which an electrical circuit transfers electric energy. The SI unit of power is the watt which is one joule per second.Wattage, Watts, and (W) are what power is measured in there just different ways to say watts."Watts" is the term used to define a quantity of power. If you were looking for a device used to measure power, that is called a wattmeter.Technically, power is a measure of how fast energy is consumed, so energy can be measured as power multiplied by time.AnswerThere is no such thing as 'electrical' power, as power is simply a 'rate'. Power is a measure of the rate of doing work, transferring energy, or of heat transfer. As energy, work, and heat are all measured in joules, power is measured in joules per second which, in SI, is given a special name: the watt.Another example of a 'rate' is velocity. We do not describe different times of velocity; neither should we describe different types of power.Electrical power in SI is measured in watts, or joules per second. It is equal to current times voltage, which is also equal to current squared times resistance. (P=IV and V=IR, where P is power, I is current, V is voltage, and R is resistance.)The watt is a derived unit of power in the International System of Units (SI), named after the Scottish engineer James Watt. The unit, defined as one joule per second, measures the rate of energy conversion.
How does thermal energy gets its power?
Power is how fast energy is flowing. Most sources of energy can be traced back ultimately to the Sun's heat and light.
How much electrical power does it take to boil 1 gallon of water?
1). You don't mean 'power'. You mean 'energy'.'Power' is the rate at which the you pump the energy into the water. You can put it in fast (high power),or you can put it in slow (low power). The total amount of energy it takes will be the same either way,but it'll take longer at low power.You don't pay the electric company for power (kilowatts). You pay them for energy (kilowatt-hours).2). The answer to the water-boiling question completely depends on the starting temperature of the water.
A measure of how fast the particles in an object are moving?
Temperature is the measure of how fast particles are moving in an object.
How much voltage does an electric iron takes?
Electrical devices are built to work with the voltage in your home. All electrical devices use the same voltage, which is either somewhere around 110 V (in some regions) or somewhere around 220 V (in others). Please note that "voltage" is not the same "power", the measure of how fast energy is used. Power (in watts) is basically the product of voltage (in volts) and current (in amperes). Different devices use the same voltage; but devices that use a lot of power (such as electric irons, or showers) use more current.
What does temperature measure?
Temperature measures how fast molecules are moving or in scientific terms it measures the AVERAGE KINETIC ENERGY in a system. Temperature measures how fast molecules are moving. :):)
