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The watt is a measurement of work done by an object at constant velocity and under constant force. 1 watt, therefore, is equal to 1 Joule per second.
Wiki User
∙ 9y ago
Wiki User
∙ 14y agoVolts * Amps = Watts
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How many watts in one MW?
1000MW is equal to 1GW
How do you calculate kilowatt to watt?
You don't! They are two different entities - like converting cars to washing machines! Simply put: Voltage is equal to resistance multiplied by current therefore current = voltage divided by resistance therefore a resistance of 23ohms at 230 volts will draw 10amps current. Watts is equal voltage multiplied by current therefore a 230volt fire drawing 10 amps equals 2.3kilowatts or 2300 watts. Use this for one hour and your electricity usage equals 2.3Kilowatt hours, say costing approx 15p per KWH = 34.5 pence. Tom.
Definition of voltage?
Voltage is electrical pressure, in joules per coulomb. One volt across one ohm will yield a current of one ampere, which is coulombs per second. One volt, producing one ampere, will yield one watt, which is joules per second.
Why is the voltage across a battery in a parallel circuit equal to the voltage across each bulb?
The voltage across a battery in a parallel circuit is equal to the voltage across each bulb because Kirchoff's Voltage Law (KVL) states that the signed sum of the voltages going around a series circuit adds up to zero. Each section of the parallel circuit, i.e. the battery and one bulb, constitutes a series circuit. By KVL, the voltage across the battery must be equal and opposite to the voltage across the bulb. Another way of thinking about this is to consider that the conductors joining the battery and bulbs effectively have zero ohms resistance. By Ohm's law, this means the voltage across the conductor is zero, which means the voltage across the bulb must be equal to the voltage across the battery and, of course, the same applies for all of the bulbs.
How many watts of lighting is required in a 15' x 10' room?
'Lighting', or the amount of light is not measured in watts. A 'watt' is a unit of power, measurement of current drawn. Most 100 watt/110 volt lamps initially produce 1690 lumens (a 'lumen' is the measure of the total "amount" of visible light emitted by a source). A 15 foot by 10 foot room is not very big, and one or two 100 watt incandescent lamps on a ceiling light fixture on a 120 volt service can light it adequately. I mention "110 volt" as in parts of the world with 220 mains these numbers change. As the voltage is doubled, the watts required would halve for the same amount of light. In other words, all other things being equal, a 50 watt 220 volt lamp should use the same amount of power, producing the same amount of light as a 100 watt 110 volt lamp.
How many volts equal one watt of power in one second?
Zero volts equal one watt. Watts is the product of amps times volts. Without an amperage the voltage can not be calculated. The time constant has nothing to do with the equation.
How many milliamps equal one watt?
It depends on the voltage. watts = amps x volts So if the potential difference (another way of saying voltage) was 1V, then a current of 1 Amp, or 1000 milliamps, would result in a power of 1 watt.
How many amps equal to 1 watt?
That depends on the voltage. One amp flowing at a potential of 1 volt produces 1 watt of power (equal to an energy consumption of 1 joule per second). 4 amps flowing at a voltage of 250 volts produces a kilowatt of power. This would be enough to satisfy the individual needs of a lot of the electrical equipment around the house.
How many 100 watt bulbs is equal to one 400 watt bulb?
ummm...4(?) is this a trick question?
How many milliwatts equal 1 watt?
1 KW = 1000 Watts.......1 mW = .001 Watt.......1 microwatt or uW = .000001 Watt
How many watts in one MW?
1000MW is equal to 1GW
How many horsepower is equal to 1 mega watt?
One megawatt is equal to 1,340 horsepower.
1amp how many watt is it?
Answer: Volts x Amps = Watts This question lacks sufficient information for an answer. It isnt. One watt is equal to one Joule of energy per second. Amperage is current, or to state it more accurately, the amount of electrons passing through a point in a second.
What does WHr in battery mean?
It might mean watt-hour, an energy unit (equal to a joule) - although the energy capacity of batteries is more commonly expressed in ampere-hours (which technically is only an energy once you multiply it with the voltage). It might also be part of some code.
How many kilowatts in a watt?
1 watt is equal to 1/1000 kilowatts. To convert a value from watts to kilowatts just divide by 1000. To answer the question there is .001 kilowatts in one watt.
How many vA equal to 1watt?
In a.c. circuits, the watt is used to measure the true power of a load, and is determined by multiplying the supply voltage by the load current by the power-factor of the load. The volt ampere is used to measure the apparent power of a load, and is determined by multiplying the supply voltage by the load current. So the relationship between the watt and the volt ampere depends on the power factor of the load. For example a 100 VA load with a power factor of 0.8 (leading or lagging) will have a true power of 80 W.
How many amps in Mega Watt?
One Megawatt = 1,000,000 watts. Watts = Volts x Amps or voltage x current. Hence if you know the voltage then Amps = 1,000,000 watts / Volts.
