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First find the current, I = W/E, 450/120 = 3.75 amps. R = E/I, 120/3.75 = 32 ohms.
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What current is taken by a heater with a resistance of 24 ohms when connected to 120 volt supply?
I don’t know
Can i run a 240 volt water heater on 120 volt?
No. A water heater requires a 240 volt connection and cannot be re-wired to run on 120 volts. There isn't enough amperage in 120 volts to power the heating rods that are inside.
Are electric baseboard heaters efficient?
Amps and Watts measure different things. An Amp is a measure of electrical current and a Watt is a measure of Power. Which ever device draws the higher amperage will be the one that uses more electricity! Hence the 240 watt heater draw less amps even though it uses more watts: Volts Watts/Electical Current Amps/Power example heater 240 volt draws 2000/1000 watts - but uses 8.3/4.2 amps example heater 120 volt draws 1500/750 watts - but uses 12.5/6.3 amps
Will 20 amps handle 3500 watts?
No. 20 amps at 120 volts will handle a maximum of 2400 watts. And you should never continuously load a 20 amp 120 volt circuit to no more than 1920 watts.
How many watts can 14-2 wire run?
14 AWG wire normally supplies 15 amps. Watts = Volts x Amps x Power Factor. Power Factor has a maximum value of one. If you have a 120 volt circuit that would be 15 x 120 = 1800 watts or 1.8 KW. For a 240 volt circuit 3.6 KW.
How do you use 110 heater to 220 volts supply?
You don't. The heater will operate over its given specified wattage. A 120 volt heater run off of 240 volt will have an output increase. Ohms law stated that current is directly proportional to the applied voltage and inversely proportional to the resistance of the circuit. A 240 volt heater can be run off of 120 volts but the wattage will be reduced. For example if an ordinary 1000 watt baseboard heater's supply is 120 volts, the current of the heater will be, I = W/E 1000/120 = 8.3 amps. The resistance of the heater is R = W/I (squared) =1000/8.3 x 8.3 (69) = 14.5 ohms. Applying 240 volts on the same heater whose resistance is 14.5 ohms results in a new heater wattage rating. W = E (squared)/R = 240 x 240 (57600)/14.5 = 3972 watts. This is 2972 watts, almost 300%, higher than the manufacturer's designed safety rating. The amperage drawn by connecting a 120 volt, 1000 watt heater to a 240 volt source will be, I = W/E = 3972/120 = 33 amps. W = watts, I = amperage, R = resistance in ohms and E = voltage.
If a heater claims to be 1500 watts how long would it take for that heater to draw 1500 watts?
Watts is the amount of power the heater has and amps would be the draw- if it is a 120 volt heater than the amps would be 12.5 amps and it is instantaneous
What will happen if 120 volt appliance is plugged into 220 volt outlet explain with electrical equation?
If V is the rated voltage of the equipment, and Vs is voltage of the supply, we have this approximate equation: Vs = 2 V. That is enough to wreck the equipment and/or blow the fuse.120 volt appliance on 240 voltsThis senerio will use an electric baseboard heater but the results will be the same for any electrical appliance.The heater will operate over its given specified wattage. A 120 volt heater run off of 240 volt will have an output increase. Ohms law stated that current is directly proportional to the applied voltage and inversely proportional to the resistance of the circuit. A 240 volt heater can be run off of 120 volts but the wattage will be reduced.For example if an ordinary 1000 watt baseboard heater's supply is 120 volts, the current of the heater will be, I = W/E 1000/120 = 8.3 amps.The resistance of the heater is R = W/I (squared) =1000/8.3 x 8.3 (69) = 14.5 ohms.Applying 240 volts on the same heater whose resistance is 14.5 ohms results in a new heater wattage rating. W = E (squared)/R = 240 x 240 (57600)/14.5 = 3972 watts.This is 2972 watts, almost 300%, higher than the manufacturer's designed safety rating.The amperage drawn by connecting a 120 volt, 1000 watt heater to a 240 volt source will be, I = W/E = 3972/120 = 33 amps.W = watts, I = amperage, R = resistance in ohms and E = voltage.
What current is taken by a heater with a resistance of 24 ohms when connected to 120 volt supply?
I don’t know
What is the amp rating for a 2kw fan heater?
From a 120 Volt supply, the Amp rating is calculated as 2,000 Watts (which is 2kW) divided by 120 Volts = 16.7 Amps.
What is the wattage of a 240V 500W heater when derated to 120V?
41.6
A 2000 watt heater connected to a 120 volt circuit will draw a current of?
Current (amps)=Watts/Volts =2000/120 =16.75 =16.75 amps
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.
How many watts need for seven ampere's and 120 volt's?
770 watts.
How many watts does a 3 amps use in America?
On a 120 volt supply, up to 360 watts. On a 240 volt supply, up to 720 watts.
What will happen if you plug in a heater 120 volts to 240 volts?
You will not pull enough power to properly operate the appliance, and you can damage the electric assembly possibly nullifying the warranty. It won't work very well. You need to get a 220 breaker, which goes across both legs of the 220 panel as opposed to a 110 v breaker which only pulls current from ONE leg of the 220 line. But it won't burn out anything if you only connect it to 110.
Can a 240V baseboard heater work on a 120V outlet?
for USA, Canada and countries running a 60 Hz supply service.A purely resistive 240 volt heater [baseboard unit] with no fan will operate when connected to a 120 volt source. Either of the two "hots" in the heater can be connected to the 120 volt grounded circuit conductor [neutral].The wattage output will be only one quarter of the rated watts, so it won't get mad hot, but it will work.A 2000 watt 240 volt baseboard heater unit [typically 8 foot] will only allow enough current to generate 500 watts at 120 volts.If the heater has a fan, then it won't work, because the fan motor won't operate correctly at the lower voltage.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
