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What is difference between running watts and starting watts?
When you first turn on a motor it is starting from a static position and more current is required to get the motor up to speed (Starting current) than to keep it running (running current). Since watts equals amps times voltage you can see the difference in wattage is related to current. If you look at watts as work being done it is obvious that it requires more work to get the motor running than to keep it running.
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Welll, it's actually a lot like the difference between amile-per-hour and cars, or between an inch and people. -- "Watt" is a unit of measure that describes the rate at wh…ich energy is used, or produced, or moved from one place to another. -- "Sunlight" is a small portion of the stupendous amount of energythat the sun produces and pours out in every direction at a humongous rate.
Answer . The volt is a measure of electric potential difference or electromotive force.. The watt is a unit of power which measures a rate of energy use.. Scroll down to re…lated links and look at "Electrical voltage V , amperage I , resistivity R , impedance Z , wattage P ".
Watts is the product of amps and volts. It's amps times volts.. The watt (W) is a measure of power (P). It's the SI unit of power, actually, and it's a joule per second. The …volt is a measure of electrical potential difference, and is the SI (derived) unit of electromotive force, or EMF (E). Voltage, which is measured in volts (V), is the force that drives electron current flow (I), which is measured in amps (A).. In relationship to the volt, the watt is current flow times voltage, or, said another way, a watt is amps times volts. As regards watts and volts, they are "linked" by current. Let's look at the expressions:. Power = Current x Electromotive force => P = I x E. Power (in watts) = Current (in amps) x Electromotive force (in volts). Voltage is a measure of electric potential, in joules per coulomb. Watts is a measure of energy transfer rate, in joules per second. To complete the answer, amperes is a measure of charge transfer rate, in coulombs per second, which is why voltage (joules per coulomb) time amperes (coulombs per second) is watts (joules per second).
Amps is an electric current unit and watt is an electric power unit.
We know that Power = Voltage(V) X Current(I) and power is measured in terms of watts as well as volt-amperes. However, for AC circuits, based on the observation that the volta…ge considered is often an average measure, VA often tends to be a far higher number as compared to the actual "wattage". Based on some information I found at the Argonne national laboratory site: the explanation found was: 1 joule = the energy generated when 1 ampere of electrical current, passes through an electrical potential drop of 1 volt. Energy = Volts x Current. 1 watt = 1 joule/second. So joules is a quantity of energy, and watts is the RATE of generation of energy. Watt = Energy / second.
kva is an apperent power which is ac,depends on phaseangle eg-e=25cos wt.while watt is a true power which is dc eg-p=vi
Watts are the units for Power while Amps or Amperes are the units for Current.
" volt " = unit of 'potential difference' or 'electromotive force', the 'pressure' between two points that makes electrons want to flow from one point to the other. Useful… only in connection with electrical stuff. " watt " = unit of power, the rate at which energy flows. Useful any place where energy, in any form, is being transferred, converted, or consumed.
' Hz ' is the symbol for ' hertz ', the SI unit for frequency -equivalent to a 'cycle per second'. The frequency of your supply is 50 Hz in Europe, or 60 Hz in North America…. The ' watt ' is the SI unit for power , which is the rate at which your electrical appliances use energy.
watt is the si unit of power
In a DC circuit, the power in watts is the volts times the amps. Inan AC circuit, the volts times the amps is called the VA, and thepower in watts is the VA times the power fa…ctor, which is 1 forsome appliances but less than 1 for others. volt-amps, or current, is only one variable of any circuit; wattagewould be the product of current times voltage, a.k.a. power Answer In purely-resistive AC circuits, the load current and supplyvoltage are said to be in phase with each other, and the product ofthese two quantities is called the true power of the load,expressed in watts . If the AC circuit is not purely resistive, then it isdescribed as being reactive , and the load current eitherlags or leads the supply voltage. In this case, the product ofthese two quantities results, not in the true power of theload, but in the apparent power of the load. Todifferentiate between apparent power and true power, apparent poweris measured in volt amperes ( V . A ) while truepower is measured in watts (W). The cosine of the angle by which the load current leads or lags thesupply voltage in reactive loads is called power factor , andhas to be taken into account when calculating the true power of thecircuit -so, in this case, true power is the product of supplyvoltage, load current, and power factor. To summarise, volt amperes are used to measure the apparent powerof a reactive load, while watts are used to measure its true power.
Power is a quantity , and the watt is its unit of measurement .
volts is the unit of votage while watts is the unit of power
The watt is used to measure the true power of an a.c.load. It is the product of the supply voltage, the loadcurrent , and the power-factor of the load. The volt ampe…re is used to measure the apparent power of an a.c. load, which is the product of the supply voltage and the load current .
Running watts will be considerably less than starting watts Example a motor starting up might take 43 amps (At 208 volts = 8944 Watts) where when it is running it might be ar…ound 21 amps (At 208 volts =4368)
Watts are volts multiplied by current while volts are theelectrical potential difference.