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You are working with two different values. Watts is the product of amps times volts. W = A x V, as you can see if there is a value missing then there can be no answer given.
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What does 40 VA mean in a transformer?
It stands for 40 volt-amperes (Volts times amps) and is a measure of power. It is equivalent to watts for a resistive load.
How many watts of led equals 40 watts of fluorescent?
Watts are a unit of power. So 40 watts of power to an LED are the same as 40 watts of power to a fluorescent. Sometimes LEDs are rated in equivalent watts which is an attempt to relate watts to brightness or lumens. You need to compare lumens and the "temperature" of the bulbs in Kelvin to get the comparison I think you are looking for.
How many LED lights can you put on a 20 amp circuit?
The electrical code states that circuit conductors that are fed by this breaker on a continuous load can only be loaded to 80%. Therefore you can have a load of 1,920 watts on this circuit. Assuming you install 8 watt bulbs you can have 240 on this circuit.
How do you convert amps to amp hours?
volts times amps equals watts, a measure of power. Amps times hours equals amp-hours, a measure of electric charge. Electric charge times voltage is energy. So 120 volts at 10 amps for 4 hours would pass 40 amp-hours of charge, the power would be 1200 watts and the energy would be 4800 watt-hours or 4.8 kilowatt-hours. So volts times amp-hours equals energy in watt-hours.
What gauge wire is required to run a 220 volt dryer circuit?
Wire size is based on the amperage the device draws. The wattage of the unit has to be included in the equation. Amps = Watts/Volts. Most homes in North America today are roughed in with a two conductor #10 cable. This size wire will allow a 30 amps. The electrical code allows this conductor to be only loaded up to 80% capacity so useful amperage is 30 x 80% = 24 amps. Watts = Amps x volts = 24 x 240 = 5760 watts. If your dryer's wattage is no larger that this a #10 conductor will be fine. If it is higher go to the next size wire which is a #8 rated at 40 amps. Same de rate has to be applied.
How many watts in 40 amps?
I t depends. Watts = Amps times volts. 40 amps x 120 volts =4800 watts or 40 Amps x 12 volts = 480 watts.
How many amps are in 40 watts?
That depends on circuit voltage. 1 watt is equal to 1 volt times 1 amp.
What is in watts of a bulbs that operates at 40 voltage with a current of 0.5?
Watts equal volts times amps, which is 40 x 0.5 or 20 watts.
4 volts is a many watts?
4 volts and how many amps? Watts = amps x volts. It depends on the amount of current (in Amps) flowing at 4 Volts... See Ohms Law: Watts = Volts x Amps If you have 2 Amps flowing at 4 Volts you are dissipating/consuming 8 Watts. If you have 10 Amps flowing at 4 Volts you are dissipating/consuming 40 Watts.
What is 40va?
It is 40 volt-amps, which is 40 volts at 1 amp, or 10 volts at 4 amps, etc. On an AC supply it could be equal also to 40 watts, or some lesser number of watts depending on the power factor of the load.
25 amps is how many kw?
Amps is a measurement of current. Watts (or kilowatts) is a measure of power. To get the power from the current, you have to know the electrical potential or volts used to produce the current. Amps × Volts = Watts (or Current × Electrical Potential = Power). Incidentally, a kilowatt is 1000 watts, so you'll have to divide your answer by 1000. e.g. if your volts is 40, then 25 amps × 40 volts = 1000 watts. 1000 watts (divided by 1000) is 1kw or kilowatt.
What is the resistance of a 40 watt bulb?
On this calculation I am assuming that the light bulb is using a 120 volt source. Watts = Amps x Volts. Amps = Watts/Volts, 40/120 = .33 amps. R = Volts/Amps, 120/.33 = 363.6 ohms resistance in the 40 watt light bulb.
Can I run a fan with light and a 1500 watt fireplace on same 15 amp breaker?
In the USA, at 110 volts, 1500 watts just about uses all the capacity of a 15 amp breaker, there's only 150 watts spare, look at the rating of the lamp and fan - lamp may be 40, 60, 100 watts, fan 40, 60, more? In the UK and Europe, at 230 volts, there's no problem. I give both answers because I don't know where you are.
How many amps do 8 40 watt fluorescent lights take?
It depends on the voltage and whether the lamps are actually 40 watts or 40 watt equivalent. Watts / volts = amps
How many watts make a volt?
Watts are a unit of power and Volts are a unit of electric potential, so they cannot be directly compared. However, Watts and Volts can be related byWatts = Volts * AmperesorWatts = (Volts^2) / Ohmswhere Amperes are a unit of current and Ohms are a unit of resistance. So, for example, if a lightbulb draws .333 Amps of current at 120 Volts, it is a 40 Watt bulb. (.333 A * 120 V = 40 W)
Can you use 2 40-watt florecscent bulbs in a fixture rated for 67 watts120 volts?
No Because 40+40 is 80 watts.
What does 40 VA mean in a transformer?
It stands for 40 volt-amperes (Volts times amps) and is a measure of power. It is equivalent to watts for a resistive load.
