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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
∙ 10y 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 watts in one ampere?
One ampere is equal to one watt in a system with a voltage of one volt. This relationship is defined by Ohm's Law, which states that power (in watts) is equal to current (in amperes) multiplied by voltage (in volts).
How many amps equal to 1 watt?
It depends on the voltage of the circuit. In a 1-volt circuit, 1 amp is equal to 1 watt. In a 10-volt circuit, 0.1 amp is equal to 1 watt. Ohm's Law (P = IV) can be used to calculate the relationship between amperes, watts, and volts in a circuit.
1amp how many watt is it?
1 ampere (1A) is equivalent to 1 watt (1W) when operating at a voltage of 1 volt. The relationship between amperes, watts, and voltage is given by the formula: power (in watts) = voltage (in volts) x current (in amperes).
How many milliwatts equal 1 watt?
1 KW = 1000 Watts.......1 mW = .001 Watt.......1 microwatt or uW = .000001 Watt
How many watts equal one ampere?
One ampere is equal to one watt in a system with a voltage of one volt. This relationship stems from Ohm's Law (P = V x I), where power (P) in watts is equal to voltage (V) in volts multiplied by current (I) in amperes.
How many watts in one MW?
1000MW is equal to 1GW
How many 100 watt bulbs is equal to one 400 watt bulb?
One 400 watt bulb is equivalent to four 100 watt bulbs in terms of total power output.
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.
What is smaller than a watt?
A milliwatt is smaller than a watt, as it is one-thousandth of a watt. It is commonly used to measure small amounts of power.
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.
