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You didn't define "importance" so it is hard to tell. They are all related by the formula Watts = Volts x Power Factor. Power Factor varies from zero to one. One thing that is often done in an application is to try to reduce the current and proportionally increase the voltage to obtain the needed wattage. That is why most electric stoves run at 240 volts rather than 120 volts, because 1/2 the current is required at the higher voltage; and you can use smaller wire and connect to a lower amperage breaker.

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Q: What is most important in dc power -volts-watts or amps?
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How many amps does a one horse power motor draw?

depends what the source voltage isone horsepower equals to 746watts (assuming 100% efficiency)746 watts divided by voltage source equals current (amps)AnswerIn countries, such as the USA, where the horsepower is still used as a means of measuring power, it is always used to measure the output power of a motor.So, in order to determine the current drawn by the motor, you will first need to find out its input power. The input power is the output power divided by the machine's efficiency. Once you know its input power, then you can find its current by dividing the input power by the supply voltage. In practise, you will need to use a wattmeter to determine its input power.


How do you figure how many watts amps or volts?

Simple is just to know two formulas Ohm's Law V = IR Power P = IV From those you can calculate voltage, amps, watts, ohms V = Voltage (volts) I = Current (amps or amperes) R = Resistance (ohm's) P = Power (watts) Just solve for what you are missing. Voltage times amps being drawn shows watts produced. Watts divided by voltage shows amps being drawn or watts divided by amperage shows voltage applied. = = = = = = = = = = = = = = = = = Power in watts (P) is voltage in volts (E) times current in amps(I). P = E*I, E=P / I, I = P / E. In a.c. that is peak to peak. To derive actual R.M.S. wattage (The true ability to do work) you multiply peak to peak by 0.3535.


How can you find electricity units from ampere?

Multiply the amperage times the volts. This will give you the wattage. There are 2 formulas that are, together, considered Ohm's Law. They are: E(volts) equals I(amps) times R(resistance), and P(power, or watts) equals I(amps) times E(volts), which is what is stated above. From these two formulas and with the application of algebraic manipulation you get a total of 12 equations that can be used to determine most answers to technical electrical questions.


How to Calculate horsepower from amps?

Horse power (more correctly brake horse power, usually abbreviated to "bhp") is a measure of how fast energy is being used. This is a different concept from amps, which measure electric current, i.e. the "rate" at which electricity flows: to know how much power is being used by an electrical device (light bulb, refrigerator, etc) you need to know the Voltage (220 or 240 V in most parts of the world, but 110 or 115 in some) and multiply this by the current in amps. This gives you the power (in watts, which is the "metric" way of measuring power, as opposed to the British and American way). It is simple to convert watts to bhp (or vice versa), as 1 bhp = 746 Watts (or 0.746 Kw). Example 1. Your car engine is capable of generating 200 bhp. You could also describe this as being capable of generating 149 Kw (200 x 0.746), and many foreign car manufacturers use this rather than bhp. Example 2. Suppose you live in a country where the voltage is 240 V, and you have an electric heater which draws 10 amps. Your heater is consuming power (energy) at the rate of 240 x 10 = 2400 watts (i.e. 2.4 Kw). This is 2.4 / 0.746 = 3.2 bhp (but you would be thought very odd to rate an electric heater in this way - the whole world uses the metric system for this!)


How much rating of voltage and current is required for a house?

That is a wrong question, because the house has to take the voltage, the power station is delivering. Either 120 volts in the USA or 230 volts in Europe. Volts are never consumed.

Related questions

How many Amps does a power tools have?

Most hand power tools are between 4 and 15 amps. Some professional tools are greater amperage.


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The most important consideration when purchasing a jump starter is power. How much power is the jump starter getting to the battery? Many manufacturers only offer battery booster packs that have only 900 peak amps and maybe 200 cranking amps.


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Most power outlets are fused for 15 amps.


Is a 15amp power tool different than just a plug in power tool?

Most 'plug in ' power tools are rated at 6-13 amps.


How many amps should a vacuum cleaner have?

Amount of electric current flowing through the vacuum. Watts: Amps multiplied by the power voltage drawn. Most upright cleaners are 7 to 12 amps. Many canister models are 12 amps. The maximum allowable amps that can be plugged into a household outlet is 12 amps.


What is the most important enumerated power?

The power of friendship.


What is the most important power of congres?

It is the power to make laws.


1 A microwave oven uses a 115 V electrical source and produces 600 Watts of power How many amps does it require?

P=UxI so I=P/U so 600/115=5.21 A ignoring losses


How many amps should a good vacuum cleaner have?

you must divide the 1000 watt vacuum by its volts to get amps. Example: if a 1000 watt vacuum has 120volts then the vacuum gets about 8.3 amps. volts x amps = watts or watts / volts = amps


Can you connect a 6 outlet power bar to an extension cord?

There are several variables:First and most important, what will be the current draw? If the total number of amps exceeds the rating of either the power strip or the extension cord you're creating a fire hazard.Second, the wire gauge and length of the extension are important. You will loose voltage over distance and that is a function of the current draw, wire type and wire gauge. If you're trying to run 20 amps, don't use any less than a 12 gauge extension cord up to a maximum of 100 Ft. 15 amps, minimum 14 gauge.


Can I use a 9-Cell 11.1V 7800mAh battery for Dell inspiron 42Wh with with 11.1 Volts?

There are two general rules for connecting power providing devices (such as a battery or power adapter) to a power consuming device. The first rule is that the voltage and power types (e.g. AC or DC) must match. The second rule is that the power providing device must provide enough current (e.g. expressed in amps (A) or milli amps (1000 mA = 1A) If you can't figure out how much amps of power a device requires or consumes, you can derive that if you know the watts. current = watts (divided by) amps So your device passes the most important requirement (watts and power types match), but we don't know if your battery can provide the current your laptop needs. The problem of your question is that it is specifying the power storage capacity of your battery (mAh), not the amount of current it can transfer at once (A). So, your question is basically unanswerable.