0
Use the basic definition of the Watt: Watts = Joules / second.
If you specifically work in electricity, here are some other common equations involving power:
P = IV (current times voltage)
P = I2R (current squared times resistance)
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What is the imperial unit to measure power?
Watts Watts
What is the current that flows through a 100-w lightbulb if it is connected to a 110-v source?
-10
How do I remove a variable out of the denominator when you are working with a rational equation?
You multiply both sides of the equation by the denominator.
How do you figure out if an equation is a linear equation?
An equation is linear if the highest power of the unknown in the equation is 1for example an equation with just a variable to the power one such as x, y and so on is linear but one with x2, y2 and above is not linear
How many roots does a quadratic equation in one variable have?
A quadratic equation has two roots. They may be similar or dissimilar. As the highest power of a quadratic equation is 2 , there are 2 roots. Similarly, in the cubic equation, the highest power is 3, so it has three equal or unequal roots. So the highest power of an equation is the answer to the no of roots of that particular equation.
What is the power factor when the apparent power is 150 VA and the active power is 100 W?
The equation for power factor is PF = True power in watts/Apparent power in Volt Amps.
What is the equation for energy transferred by an electrical appliance?
Energy = power x time. If power is in watts, and time in seconds, energy will be in joules.
How do you convert to watts to pmpo?
The only way to convert watts to PMPO is when you are using watts RMS. With this, the equation is 1 watt RMS is equal to 100 PMPO. PMPO stands for peak music power output.
How many watts are in 600 volts?
You are confusing electrical potential (Volts) and power (Watts). The equation for power (watts) is P = VI where V is volts (a measure of electrical "pressure") and I is current in amperes (the rate of flow of electricity). If the system is 120V and the power used is 600W then the current used is 5A. If the system is 240V and the power used is 600W then the current used is 2.5A.
What do you measure power with?
Power is the equation Work divided by Time. Power is measured in Watts, and basically it is the amount of work done in a certain amount of time.AnswerPower is measured with an instrument called a wattmeter.
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.
What is 15amp equivilent to in watts?
You need to know the voltage and Power Factor in the equation Watts = Amps x Volts x Power Factor. Now Power Factor is equal to one for a resistance load and decreases for loads like motors. So for example if you are talking about a home portable electric heater that draws 15 Amps at 120 Volts your Watts would be 15 x 120 = 1800 watts or 1.8 kilowatts.
What is the power of light bulb measured in?
the unit which are measured for power of lights are watts....
If an appliance draws 10 amps and the line voltage is 110 volts the power consumed is?
The equation that you are looking for is Watts = Amps x Volts. Power is consumed at that rate over a time constant. You are billed by the electrical utility company by the kWh. 1000 watts are equal to 1 kW.
What equation would you use to calculate how much current in AMPs is required to achieve the full 100 to output from a volt bulb?
The bulb is marked with the power (watts) and the voltage. Divide the watts by the volts and you have the amps.
How much electric power you can take from a 5KW generator?
5000 Watts if it runs ideally. It really depends on the generator's efficiency. Lets say, if its working on 80% efficiency, it'll provide with 0.8 * 5000 watts of electric power.
Can 80 watts power a 12 volt for 16 hours day?
You are confusing the units.If 80 watts can power a device for a second, the same 80 watts can power the same device for a year - assuming the generator, or whatever produces the power, continues working. A watt is a unit of power (energy / time), not a unit of energy. Thus, since you are using units of power, the 16 hours are completely irrelevant to the problem.Nor can you directly compare watts and volts. The relationship is: power = voltage x current. In SI units: watts = volts x amperes. If a device uses less than or equal to 80 watts, your 80 watts will be enough; otherwise they won't. If the specifications of an electrical device only specify volts and amperes, multiply them to get the watts required.
