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For a fixed resistance (ohms) current increases as voltage increases. Since Watts equals Volts x Amps x Power Factor then Watts would increase as voltage increases. The resistance would usually be fixed, but if you had a variable load resistance as the resistance decreased and the voltage remained constant, the current would increase and watts would therefore increase.
Watts = Volts x Amps x Power Factor
Volts = Amps x Ohms
Power Factor is 1 for a resistive load.
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How many loads can a 20 amp 12 ga wire carry?
A #12 wire can carry 20 amps. Assuming the connected voltage is 120 volts the wattage will be Watts = Amps x Volts. W = 20 x 120 = 2400 watts. The circuit can legally be loaded to 80%. 2400 x 80% = 1920 watts. The maximum amount of loads that can be connected to a 20 amp #12 wire have to be added up individually but stay under 1920 watts.
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.
Why 380 volts line to line if connect line to neutral is 220 volts?
A voltage of 380 volts is a three phase voltage. On a three phase four wire system, each phase leg to neutral (grounded) will give you 220 volts. This voltage is obtained by dividing the phase voltage by 1.73, as the phase legs are generated 120 degrees from each other. Square root of three is 1.73 divided into 380 equals 220 volts.
How do you reduce 48 volts dc to 12 volts dc with resistors?
Yes. You can use a voltage divider. Say, for instance, one 1KOhm resistor in series with a 3KOhm resistor. Connect the 3k resistor to the 48 volts and connect the 1k resistor to ground. The 1k resistor will have 12 volts acress it. These resistors need to be at least 1 watt each as they are going to dissipate 0.576 watts and get warm. Now, if you attempt to pull power from the 1k resistor, note that regulation will be poor because the impedance of the load will go in parallel with the 1k resistor and change its value.
Can a 120V light fixture be used in India?
It can be if you connect two same watt lamps in series with each other. The 240 volt supply will drop 120 volts across each lamp.
How many watts are in one amp?
Power (in watts) is equal to voltage (in volts) multiplied by current (in amperes). Therefore, the number of watts in one amp depends on the voltage. For example, at 120 volts, one amp is equal to 120 watts.
How do you convert watts into amperes?
To convert watts into amperes you divide the circuit voltage into the watts. Amps = Watts/Volts. <<>> Converting Watts to Amps The conversion of Watts to Amps is governed by the equation Amps = Watts/Volts For example 12 watts/12 volts = 1 amp Converting Amps to Watts The conversion of Amps to Watts is governed by the equation Watts = Amps x Volts For example 1 amp * 110 volts = 110 watts Converting Watts to Volts The conversion of Watts to Volts is governed by the equation Volts = Watts/Amps For example 100 watts/10 amps = 10 volts Converting Volts to Watts The conversion of Volts to Watts is governed by the equation Watts = Amps x Volts For example 1.5 amps * 12 volts = 18 watts Converting Volts to Amps at fixed wattage The conversion of Volts to Amps is governed by the equations Amps = Watts/Volts For example 120 watts/110 volts = 1.09 amps Converting Amps to Volts at fixed wattage The conversion of Amps to Volts is governed by the equation Volts = Watts/Amps For Example, 48 watts / 12 Amps = 4 Volts Explanation Amps are how many electrons flow past a certain point per second. Volts is a measure of how much force that each electron is under. Think of water in a hose. A gallon a minute (think amps) just dribbles out if it is under low pressure (think low voltage). But if you restrict the end of the hose, letting the pressure build up, the water can have more power (like watts), even though it is still only one gallon a minute. In fact the power can grow enormous as the pressure builds, to the point that a water knife can cut a sheet of glass. In the same manner as the voltage is increased a small amount of current can turn into a lot of watts.
How many watts in amp at 220 volts?
That of course depends on who made the water heater and what model number it is you could always call the manufacturer. Quickest way I know of is to look at the heating elements. They will have a wattage rating. This number is visible when you take the cover or covers off, move aside the insulation and use a flashlite to spy the pesky little rascals.I suggest you shut off the voltage first. My 80 gal has 2 elements of 4500 watts each if I'm not mistaken. All you need to do is multiply the Volts by the Amps and that equals watts
How much each circuit breaker amperes do you need for 3 phase 2200 watts motor?
To answer this question the voltage of the motor must be given. Watts is the product of amps x volts. Amps = Watts/Volts. Once this is found the motor breaker needs to be larger to allow for the inrush start current.
How many amps does a double 100 watt spotlight use?
If each spotlight is rated at 100 watts, together they would use 200 watts. To convert watts to amps, you can use the formula: Amps = Watts / Volts. Assuming a standard voltage of 120V in a household setting, the double 100 watt spotlight would use approximately 1.67 amps.
How many amps does a 2000 watt heater draw at 240 volts on each line?
For a single phase circuit, the equation you are looking for is I = W/E. Amps = Watts/Volts.
How many amps is 3000 watts?
To calculate the amperage for a given wattage, you would also need the voltage of the circuit. However, if we assume standard 120V household voltage, then 3000 watts would be equivalent to 25 amps (3000 watts / 120 volts = 25 amps).
5 List three functions performed by the power supply?
Manages watts to each device Manages volts to each device Supplys power to multipul devices
How much ohms do 240 Watts give out?
Firstly, ohms are not given out by Watts; each is a completely different unit. Secondly, without knowing the current, the resistance cannot be calculated from the informatio given.Ohms Law states: Volts = Amps x Resistance (In Ohms)Watts = Volts x AmpsResistance = Watts / (Amps x Amps) or (Volts x Volts) / WattsIf you are referring to normal residential voltage just insert that value for volts in any of the equations above.Additional information:The resistance of a 12 AWG solid copper wire is about 5.21 ohm/km compared to 5.32 ohm/km for a 12 AWG stranded wire.
How powerful of an alternator and a capacitor would be needed to run a 6000W Subwoofer system in a 1999 Dodge Intrepid?
6000 watts divided by 14.2 volts (12 volt car system operates near 14.2 volts), gives you 422 amps. You would need 4 alternators rated at 110 amps each to make 6000 watts of power at 12 volts. If the system were 24 volts, you would only need 2.
How do you convert amp into watts?
Sneighke answered:Short answer, you can't. They are fundamentally different physical units.A Watt is a measure of power and the Amp (or Ampere) is a measure of current. For the relationship between the two, please refer to the related question.Different units cannot be equated to each other but can be combined with other units to produce the equivalents.------------------------------------------------------------------------------
Fridge draws 65 watts on 240 volts how many kwats does it use?
To convert watts to kilowatts, divide by 1000. In this case, the fridge uses 0.065 kilowatts (65 watts / 1000).
