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Power = Volts x Amps. Hence 1kW is irrelevant of voltage.

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Q: For 1KW electricity does 240V or 120V cost less?
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How many amps are generated by a 1500 watt heater at 208 volts?

You have to be careful here. A heater will be advertised as "X" watts, but that is only true if you connect it to the voltage source it is supposed to be connected to. If you plug it into a higher or lower voltage source than intended, it will produce a different number of watts.Electric heaters are just resistors. When you run electricity through them, they get hot. If you run more electricity through that resistor, it will produce more heat. If you run less electricity through it, it will produce less heat.As an example, you can find "1500W/120V" water heater elements at the hardware store. This means that if you plug it into a 120V source, it will produce 1500W of heat, and it will pull 1500W/120V = 12.5A of current.You can calculate the resistance of the heater by taking voltage times voltage divided by watts, so this "1500W/120V" heater is really just a resistor of this many Ohms:120V * 120V / 1500W = 9.6 OhmThat Ohm value is physical property of the device. It will not change. If you were to take this heater now and plug it into a 240V supply, you can calculate the amps with voltage divided by resistance:240V / 9.6 Ohm = 25 AmpsAnd, for watts, you can take voltage times voltage divided by ohms:240V * 240V / 9.6 Ohm = 6000WSorry for the long text, but it's crucial that you understand this.If your heater is 1500W and is INTENDED to be running on 240V, you have a 38.4 Ohm resistor. Running that resistor at the lower 208V will produce only 1126W of heat and will pull just 5.4 Amps of current.However, if your heater is 1500W and is indented to be running on 120V, then you have a 9.6 Ohm resistor. You will almost certainly start a fire if you plug it into a 208V supply, because you will be pulling close to 22 Amps and producing 4500W of heat.


How do you test residential electricity with a DVOM?

For most tests you want the AC Volts setting. On US residential service you should see 240V between one hot and the other, 120V between a hot and neutral, 120V between a hot and ground, and 0V between neutral and ground. Variations of 10% or less from these numbers are OK. You should see very little to no voltage when testing neutral to ground. Don't use the current setting unless you know what you are doing. You can tost your meter.


How much does electricity cost in one month?

It actually depends on how much you you it so If you use it a lot it's gonna cost a lot and if you use it less it's gonna cost less


What is the best Electric wall heater voltage?

The best voltage for an electric wall heater depends on the specific needs and requirements of your space. Generally, residential electric wall heaters are available in 120V or 240V options. 120V heaters are suitable for smaller rooms or areas, while 240V heaters are better for larger spaces or rooms that require more heating power. It is important to consult with a professional electrician to determine the appropriate voltage for your specific heating needs.


Why Indian domestic supply is 240 volt and 50Hz?

At the time electricity was implemented for domestic use, India was under British rule. 240v 50Hz is the British system. 240v was deemed to be the ideal compromise between safety and having conductors suitably small, using less current for power required. 50Hz is half of 100 in an attempt to metricate the system.

Related questions

Which cost less to operate 120 v appliance or 220 v appliance?

For the most part, they cost about the same. For instance, if you look up a 120V, 2hp electric motor in a catalog, you will find it draws about 18A. 120V * 18A = 2160 watts. If you look up a 240V, 2hp motor, it will draw about 9A. 240V * 9A = 2160 watts. Watts are watts. Watts are what you pay for. It takes a certain amount of power to perform a particular task, irregardless of the voltage supply. You typically see larger loads, such as a dryer, range or AC unit fed from 240V. This is because the lower current draw permits you to run smaller wire, which is less expensive to install.


How many amps are generated by a 1500 watt heater at 208 volts?

You have to be careful here. A heater will be advertised as "X" watts, but that is only true if you connect it to the voltage source it is supposed to be connected to. If you plug it into a higher or lower voltage source than intended, it will produce a different number of watts.Electric heaters are just resistors. When you run electricity through them, they get hot. If you run more electricity through that resistor, it will produce more heat. If you run less electricity through it, it will produce less heat.As an example, you can find "1500W/120V" water heater elements at the hardware store. This means that if you plug it into a 120V source, it will produce 1500W of heat, and it will pull 1500W/120V = 12.5A of current.You can calculate the resistance of the heater by taking voltage times voltage divided by watts, so this "1500W/120V" heater is really just a resistor of this many Ohms:120V * 120V / 1500W = 9.6 OhmThat Ohm value is physical property of the device. It will not change. If you were to take this heater now and plug it into a 240V supply, you can calculate the amps with voltage divided by resistance:240V / 9.6 Ohm = 25 AmpsAnd, for watts, you can take voltage times voltage divided by ohms:240V * 240V / 9.6 Ohm = 6000WSorry for the long text, but it's crucial that you understand this.If your heater is 1500W and is INTENDED to be running on 240V, you have a 38.4 Ohm resistor. Running that resistor at the lower 208V will produce only 1126W of heat and will pull just 5.4 Amps of current.However, if your heater is 1500W and is indented to be running on 120V, then you have a 9.6 Ohm resistor. You will almost certainly start a fire if you plug it into a 208V supply, because you will be pulling close to 22 Amps and producing 4500W of heat.


Solar energy cost?

Less then regular electricity.


How do you test residential electricity with a DVOM?

For most tests you want the AC Volts setting. On US residential service you should see 240V between one hot and the other, 120V between a hot and neutral, 120V between a hot and ground, and 0V between neutral and ground. Variations of 10% or less from these numbers are OK. You should see very little to no voltage when testing neutral to ground. Don't use the current setting unless you know what you are doing. You can tost your meter.


Does an electric stove burner use 220 or 110?

The burners will most likely be 240V. By keeping the range at 240 volts it will use less amps that at 120V. Say a range and oven is rated at 9000 watts. Watts = amps x volts. 9000/240V = 37.5 amps. 9000/120V = 75 amps. As you can see at 120 volts the amperage is double over 240 volts. You would need a 100 amp breaker and #4 wire to accomodate the range on 120 volts.


How many rupees is electricity per unit?

Cost per unit of electricity depends the type of generation used. ie:- thermal hydel, nuclear etc. hydel electricity is cheaper and now a days it cost less than Rs.10 per unit in India. whereas thermal electricity cost less than Rs. 20 per unit


How much does electricity cost in one month?

It actually depends on how much you you it so If you use it a lot it's gonna cost a lot and if you use it less it's gonna cost less


How far can 7.2kilowatt of electricity travel?

It depends upon what voltage pushes the current. Thousands of volts can push for miles. 120v common household current can only travel about 1000 feet or less.


Why is it important to save the cost of electricity?

Saving its cost is purely a matter for you and your household finances. Saving electricity - or properly, using less - reduces the demands on the generators hence fuel used.


Why building 5 storeys or less don't have elevators?

Because they are not high and they cost a lot of electricity


What is the best Electric wall heater voltage?

The best voltage for an electric wall heater depends on the specific needs and requirements of your space. Generally, residential electric wall heaters are available in 120V or 240V options. 120V heaters are suitable for smaller rooms or areas, while 240V heaters are better for larger spaces or rooms that require more heating power. It is important to consult with a professional electrician to determine the appropriate voltage for your specific heating needs.


Is radiant energy cheap?

This natural energy can perform the same wonders as ordinary electricity at less than 1% of the cost.