You also need to know the Voltage and wattage.
Amps= Watts / Volts.
Try this iPhone App "Watts2Amps"
calculate amp usage
Divide 25,000 by the supply voltage to get the current.
To calculate the amp draw of a device you need to use one of the following three formula. I = W/E, I = E/R, I =√W/R. Once the amperage of the circuit is found then the size of the breaker can be established.
To calculate voltage drop to size the wire, a voltage must be stated.
Ib =Ic /beta beta is the gain factor of the amp.
12 x 80 = 960 watts.
Their are two ways select ratio analysis & tally gives you various ratios alternatively select profit & loss account Press F12 & select show percentages as yes and save
For a home, to calculate the amount of receptacle outlets on a 15 amp circuit, each receptacle outlet should be calculated as not drawing more than one amp each.
To obtain the amp of the copper bus bar, multiply the width of the bus bar by the thickness of the bus bar to obtain the current carrying capacity of the bus bar.
To determine amp draw in an electrical circuit, you can use Ohm's Law, which states that current (amps) equals voltage divided by resistance. Measure the voltage across the circuit and the resistance of the components in the circuit, then divide the voltage by the resistance to calculate the amp draw.
a 15 amp circuit breaker means you can use devices upto 7.5 amp calculate total current used by this devices and make sure they dont cross a sum of 7.5 amps
To calculate the amp load for a generator, you need to determine the total wattage of the devices you plan to power with the generator. Then, divide the total wattage by the voltage of the generator (usually 120V or 240V for residential generators) to get the amp load. This will help you ensure that the generator can safely handle the electrical load without being overloaded.