The time is immaterial. A 550-watt motor operating at 8.5 amps needs a voltage of 550/8.5 volts.
The equation needed to solve this question is E = W/I. Volts = Watts/Amps. The time factor is a "red herring" and is not needed to solve the question.
There are many terms that do not represent electric power in a circuit, such as cauliflower, aeroplane and rabbit.Electric power in a circuit is measured in watts (W).
if small means 500 watts yes if small means 1200 watts no
For the furnace Watts = Amps x Volts Divide watts by 1000 to get 4.8KW.
An electric toothbrush has 2-4W (watts).
To figure that out you need to know the Amperage that it draws and what the voltage of the circuit is that you're using. Once you know that you can figure out how many watts it uses by doing simple math. Voltage x Amperage = Watts
There are many terms that do not represent electric power in a circuit, such as cauliflower, aeroplane and rabbit.Electric power in a circuit is measured in watts (W).
Motors are rated either in Watts or Amps, and by Voltage. If the motor is rated in Amps, that is the fuse or circuit breaker size you will need. If rated in Watts, you will have to use the formula P=IE, where P is power in Watts, I is current in Amps, and E is Electromotive Force in Volts. Since we know the watts and volts, we solve for current, thus: I=P/E, and I will be your current rating. One note: These calculations give the MINIMUM rating needed for the motor to run. Fuses and circuit breakers are usually designed so that they will break if the circuit pulls 250% of the Motor's rating.
One horsepower (electric motor rating) is equal to 746 watts.
"W" for watts, or wattage
To answer this question the voltage of the motor must be given. Watts is the product of amps x volts. Amps = Watts/Volts. Once this is found the motor breaker needs to be larger to allow for the inrush start current.
A 100 horsepower electrical motor would consume 74,600 watts.
Assuming the same voltage and power factor for the two motors. Watts = Volts x Amps x PF so the power of 1000 A motor is Watts = 1000 x V x PF and the 750 A motor is Watts = 750 x V x PF. So (Watts for 1000A) / (Watts for 750A) = 1.33 This means the 1000 A motor uses about 33% more electricity than the 750 A motor.
Two wires are needed so that the electric current has a circuit to flow round. For a simple circuit, the voltage between the wires, multiplied by the current in amps, gives the power in watts, which is how fast energy is used up (joules per second). Also, the voltage divided by the current gives the resistance of the load, in Ohms.
In theory one horse power equals 746 watts. They are both basic measures of power. A 1 HP motor however draws more than 746 watts because to give a mechanical output of 1 HP/746 watts at the shaft, the motor has to draw more than 746 watts of electric power to cover losses in caused by resistance in the windings and the iron core of the motor, and friction in the bearings. A typical efficiency for a motor would be 90% so that the electric power used would be 829 watts. <<>> For clarification in all electrical calculations regarding horsepower, 746 watts per horsepower is used.
if small means 500 watts yes if small means 1200 watts no
Wattmeter is an intrument which is used to measure the power consumption of an Electric circuit or an appliance which is connected to the supply in terms of Watts.
For the furnace Watts = Amps x Volts Divide watts by 1000 to get 4.8KW.