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To find the watts of electrical power in an electrical circuit?
Wiki User
∙ 13y ago
Power = Voltage*Current. Multiply the current and the voltage. Keep your units in mind. If your voltage is Volts, and your current is in Amps, your power will be in Watts. If you are using milliamps, your power will be in milliwatts. You can also use P=I2*R. The current squared, mulitplied by the resistance of the circuit. Or P=V2/R, the voltage squared divided by the resistance of the circuit. The last two of these can be derived from the basic equation V=I*R and P=V*I. Here's a little helper for you too. "Twinkle twinkle little star, power equals I squared R".
Wiki User
∙ 13y ago
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Rate at which electrical energy is converted to another type of energy?
The rate at which an appliance takes energy from the electrical outlet and spinsthe electric meter is the "power" shown on the data label, usually on the backor the bottom of the appliance.The rate at which it actually converts the energy into the form required to do itsjob is also a "power" figure. This one is always less than the power taken fromthe wall outlet, and is not always stated or marked on the appliance.A couple of cases where it is clearly stated:-- Microwave Oven: " 600 Watts of Cooking Power "The microwave oven is using perhaps 1,500 to 2,000 watts from the electric company,converting some of it into radio waves (with less than 100% efficiency), and delivering600 watts of microwave radiation to the cooking chamber.-- Blow Drier: " 1,250 Watts of Drying Power "The blow drier is using perhaps 1,500 watts from the electric company, anddelivering useful energy at the rate of 1,250 watts, in form of a hot coil anda strong little fan motor to blow air across the coil.But on an electric stove, furnace, blender, food processor, fan, telephone, TV,computer, vacuum, washer, dryer, etc., you can find the power consumptionmarked somewhere on it, but it's not clear exactly where that power goes.
How many amps does 6000 watts pull?
There are zero amps in 6600 watts. Watts are the product of amps times volts. W = A x V. To find amperage use the following equation, A = W/V, so as you can see a voltage value is needed in the equation to result in an amperage.
How do circuit breaker keep the wires in a electrical circuit from overheating?
A circuit breaker is designed to 'break' in a circuit if a short circuit (or other malfunction) occurs. This prevents overheating (or burn-out) of the circuit wires. In older systems, you would need to find which fuse wire has fused and replace it. In a circuit breaker, once the fault has been found and corrected, the breaker is simply switched back on.
How do you protect two power in one circuit?
If the question means "two loads in one circuit" then the load currents have to be added together. The breaker that protects the circuit is sized for the total loading of the circuit. These two loads of course will be in parallel with each other. Find the wattage of the two loads if the amperage is not available. The equation is W = A x V. Watts = Amps x Volts. Once the total amperage of the circuit is found select the correct wire size for that amperage. The breaker protects the wire size so then select the proper breaker for that wire size.
How can you determine how much power a circuit will generate if you know the voltage and resistance?
Ohms law provides the formula to determine any of the three components in a circuit voltage=E Resistance=R and Current=I so with any two you can figure out the third:I=E/RE=IxRR=E/ISo to find I use I=E/R so you divide the resistance into the voltage and you have the current(in amps) or power.Power can be found using the equation: power = (voltage)2 / resistance.The Equation is PIE where P is power in watts. I is current in amps. E is voltage in volts. P equals I times E. 240 watts is created with 120 volts and 2 amps of current
How do you find the current draw of an electrical circuit if you do not know the voltage and wattage of the device?
Basically if you know the Voltage supply and the power used by an appliance then you use the formula for power which is Power = Volts x Amps. Rearrange so Amps (current) = Power / Volts If power was 2400 Watts and Volts was 240 the Current would be 2400 / 240 = 10 Amps
How many watts in 10 amps?
Watts and amps measure different things, and they cannot be converted as asked. Watts measures power. Volts measures voltage and amps is a measure of current. The three electrical parameters are related by this formula: Power (watts) = volts times amps. If you know the voltage, then you can find the watt-to-amp ratio.
What total ampere in 736watts used in 8 hours?
You cannot find ampere from watts (power) and time, alone. To find amperes (electrical current) from power, you also need to know the voltage, then:Current = (Power) / (voltage), or Amperes = Watts / Volts.You can get energy (measured in kilowatt-hour) from the information you have:736 watts is 0.736 kW, then multiply by 8 hr to get 5.888 kWh
How much wattage is available in a 15amp breaker?
Wattage (power) is not stored in a breaker; in its tripped position, electrical power form the power line is disconnected. When the breaker is activated, electricity (power) flows through the breaker to the circuit in the home. Using the formula below, you can find the wattage the breaker can handle, not how much it has. Watts = Volts x Amps = 120 volts x 15 amps = 1800 watts A toaster requires 1500 watts of power, so if you are running a coffee maker which probably requires 700 watts or more and turn on you toaster, that 15 amp breaker will trip.
Where can you find the power rating of an electrical appliance?
Normally the power rating of an electrical appliance can be found on its 'Rating Plate' or, if there isn't one, use the following formula W = A x V, where W = watts, A = current and V = voltage.
How many watts in 6V?
None by itself. Watts are measurement of power, and power is volts times amperes. Secondly, the 6 volts must be in an electrical circuit (loop) to create current flow (Amps). Thirdly, the resistance of whatever the 6 volts is powering determines current flow (Amps). So, without knowing the current flow, you cannot calculate power. Fourth, power (Watts, horsepower, ergs, chevals vapeur, etc) is a measurement taken over a certain time - it is not instantly measureable with an inexpensive meter like a voltmeter or an ammeter (Amp-meter).
How many volts in 1.5 watts?
That would depend on how many amps are drawn at 1.5V. A watt is a measure of power. Electrical power is determined by electrical potential (voltage) and electron flow (current). Power = Voltage * Current To find your answer, you need to know the current consumption of your load to know how many watts it is consuming. If you are trying to figure out how many watts can be provided from a source, say from a 1.5V battery, you would need to know the current output of the battery (which is usually provided in Ah, which tells you how many amps it can produce in one hour).
How many volts are in 15 watts?
That would depend on how many amps are drawn at 1.5V. A watt is a measure of power. Electrical power is determined by electrical potential (voltage) and electron flow (current). Power = Voltage * Current To find your answer, you need to know the current consumption of your load to know how many watts it is consuming. If you are trying to figure out how many watts can be provided from a source, say from a 1.5V battery, you would need to know the current output of the battery (which is usually provided in Ah, which tells you how many amps it can produce in one hour).
How many watts are in 220 amps?
This is 220 volts AC, I assume. 10 x 220 = 2.2kVA of power. The real power will depend on the power factor. Take the power factor times 2,200 to find the watts.
How do you find the current draw of an electrical circuit if you know the voltage and wattage of the device?
The answer you need is found in "Ohms Law." It is expressed like this: Current = watts divided by volts Watts = Volts multiplied by current Volts = Watts divided by current. I recommend you look into the hobby of Amateur Radio and put your knowledge of electronics to a fun use. My wife and I are both 'hams' and love the hobby!
How many amps in 3500 watts with 120 volts?
That depends on the voltage, but the residential standard is 240 volt. At that voltage you sit at around 15 amps, however it MUST be on a 20 amp circuit for national (US) or Canadian electrical code, as you can only load your circuit to 80% of it's capacity.
How many 75 watt bulbs can be on a 20 amp circuit?
Common sense with electrical systems dictates that current in a circuit be limited to 80% of nameplate (20A). The number of 150W lamps will be limited to 12 in this scenario. This answer can be superseded by local ordinance.
