For a single-phase induction motor, allow 7 amps on a 240 v for a 1-HP motor.
Therefore the formula is: current = 7 X HP x 240 / voltage
It depends on the wattage of the unit. When that is found use the formula; Amps = Watts/Volts to find your answer.
Volts = Amps x Resistance Therefore Amps = Volts / Resistance
There are zero amps in 32 kWh. Watts are the product of amps times volts. Without stating what the voltage is, this calculation can not be made. I = W/E is the formula to find amperage but there has to be a time constant if kWh is used. Usually the question is asked as to how many amps are in 32 kW.
There is one part of the question missing. To find an answer the kW of the heater must be stated. Then the equations used are, to change kW to watts, Kw/1000 = watts. Once that is found then use, I = W/E, Amps = Watts/Volts. This will give you the value in amperage of the heater.
The formula you are looking for is Amps = Watts divided by Volts. Once you find the amperage you can decide as to the size of a fuse you should use. Remember that fusing protects the conductors of the circuit and not the load of the circuit. A #14 wire is rated at 15 amps and can legally be loaded only to 12 amps.
To find amps if watts and volts are known, use the formula; watts / volts = amps or 5000 / 240 = 20.83 amps
There are several ways to find watts; volts x amps = watts or resistance (ohms) divided by amps squared or volts squared divided by amps. You can search for Ohm's Law to find examples of these different methods and sample calculations.
Watts= Volts x Amps
Some where on the electric piano there will be a manufactures label. When you find it the voltage and amperage will be stated. To find the wattage use the formula W = Amps x Volts.
Volts x Amps = Watts
The formula you are looking for is I = W/E. Amps = Watts/Volts.
Multiply the amps by the volts and the answer is the VA
The sizing of wire is calculated by the amount of current the circuit draws. To find the amperage when the wattage is known use the following formula, Amps = Watts/Volts. 6500/240 = 27 amps. A #10 AWG copper conductor will limit the voltage drop to 3% or less, when supplying 27 amps at 240 volts for a 100 foot distance.
AC power is electricially, a value that is expressed in watts and voltage is the electromotive force that combined with amps, makes up the formula to find watts. Watts is the product of Amps x Volts. W = amps x volts.
The formula you are looking for is W = I x E. Watts = Amps x Volts. If you can find the two values on the fixture's label then use the formula to find the wattage of the fixture.
To find the power in watts, multiply the current (5.0 amps) by the voltage (which is needed to provide the full power calculation). Without voltage information, we can't determine the power in watts solely from current (amps).
It depends on the wattage of the unit. When that is found use the formula; Amps = Watts/Volts to find your answer.