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Answer: In SI, all forms of energy is measured in joules. An alternative, but non-SI, unit is the kilowatt-hour. A kW.h is equivalent to 3.6 million joules.
In the UK, energy companies charge their consumers 'per unit', rather than 'per kilowatt hour'. In this context, a 'unit' is short for 'Board of Trade Unit', and is used to measure the consumption of electrical energy. A unit is exactly equal to a kilowatt hour, which is the amount of energy consumed, over a period of one hour, at a rate of one kilowatt.
Answer: It depends what aspect of electricity you want to measure. The above answer is for energy; however, in electricity you also use other units including ampere (to measure current), volts (to measure voltage), ohms (to measure resistance or impedance), hertz (to measure frequency), and several others.
Wiki User
∙ 9y ago
Wiki User
∙ 12y agoThe SI unit for power is the watt. It doesn't matter whether it is electrical power or any other type of power.
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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.
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.
What is the unit of electrical power?
Watt
What is the practical unit of power in engineering?
The SI unit for power is the Watt, the most commonly derived unit is for electrical power definition, which is the Kilowatt.
How is power measured?
In physics, power is the rate at which energy is transferred, used, or transformed. The unit of power is the joule per second (J/s), known as the watt (in honor of James Watt, the eighteenth-century developer of the steam engine). For example, the rate at which a light bulb transforms electrical energy into heat and light is measured in watts-the more wattage, the more power, or equivalently the more electrical energy is used per unit time.
Electrical power of light blubs is measured in what unit?
watts
What unit is used to express electrical power?
Electrical power is also measured in Watts.
In what metric unit is power measured?
The basic metric unit for electrical power measurement is the watt, which is equal to one joule per second.
Power is measured with what unit of energy?
Power and energy are different physical quantities. They have their own units in SI system Unit of energy is joule and that of power is watt. Of course electrical energy is measured as kW h
The speed at which an electrical current can do work is measured in which unit?
The rate at which work IS being done - or at which it would be done if you switched on an electrical appliance or some other piece of electrical equipment - is called 'power' and it is measured in watts.
What unit of electrical power is used to measure how fast electrical energy is used?
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.
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.
What unit is household electricity measured in?
watts or kilowatts are used to measure power, which is how quickly energy flows, and electrical energy is measured in kilowatt-hours. A kilowatt-hour is also known as a Unit of electrical energy, and it is the amount of energy used when a power of 1 kilowatt flows for 1 hour.
How can you convert kwh to kg?
The amount of electrical energy is measured in kilowatt hours. Kg unit of mass and weight. These two are not comparable.
What is the unit of electrical energy in MKS system?
Any energy - electrical or otherwise - is measured in Joule.
What do you mean by PMPO and WATT?
PMPO is the electrical power transferred from an audio amplifier to a loudspeaker, measured in watts. A watt is a derived unit of power, measuring the rate of energy conversion.
What is an eletric current measured in?
If you refer to the units, power (any power, not just electrical power) is energy divided by time. The SI unit is the watt, equal to 1 joule/second.
