0
How do you determine the amperage given the voltage and the wattage?
Wiki User
∙ 16y ago
Divide the power in watts by the voltage in volts to get the current in amps.
Wiki User
∙ 16y ago
Wiki User
∙ 11y agoIt's determined by the wattage usage of your components being supplied power. An average computer system may use about 300-500 watts.
Wiki User
∙ 10y agoMultiply (1,000) x (Voltage) x (Amperage) and you have KW.
Multiply that by the number of hours you use it, and you have KWh.
Add your answer:
Earn +20 pts
How many amps do you need to power 1hp?
The amperage of a motor is governed by the voltage that the motor operates on. Without a voltage given, an answer can not be given.
What is the voltage loss over 400 feet?
To answer this question the supply voltage and the amperage of the load must be given.
What size wire 100 kva transformer?
Wire sizing of a feed conductor is based on the amperage that a device draws. To calculate amperage from KVA a voltage of the supply has to be stated. Without this voltage and whether the transformer is single or three phase an answer can not be given.
What size wire for 55kw?
Wire is sized by the amperage that it will carry. 5 kW is 5000 watts. The equation to find watts is W = Amps x Volts. The equation to find amps is Amps = Watts/Volts. As you can see a voltage is needed to calculate the amperage. Once the amperage is stated, the wire size can be given for that particular amperage.
What size breaker do you need for 5.7kw neff oven?
A breaker is sized by the wire size. The wire is sized by the amperage. The formula for amperage is I = W/E. Amps = Watts/Volts. As you can see with no voltage stated an answer can not be given.
What is the output of a light ballast?
Fluorescent electronic ballasts have a voltage to amperage ratio chart on their face. Use this chart by selecting the voltage you are using and the corresponding amperage, then multiply the two numbers together for your wattage. Some fixtures come with more than one ballast, so you will need to take the wattage of all applicable ballasts for any given fixture to obtain the total wattage for the fixture.
What is breaker size for 62.19 KW 3 phase?
A breaker protects the wire size of the feeder that is connected to it. The amperage of the load must be found. Without a voltage stated the amperage from the wattage given can not be calculated. The equation for amperage when the kw is given is A = kW x 1000/1.73 x volts x pf. The pf constant to use is .9.
How many amps do you need to power 1hp?
The amperage of a motor is governed by the voltage that the motor operates on. Without a voltage given, an answer can not be given.
What is the voltage loss over 400 feet?
To answer this question the supply voltage and the amperage of the load must be given.
What will the voltage drop on a 1.5 mm cable run 1.5 kilometres be?
This is a voltage drop question. The amperage of the circuit must be given. Without the load amperage this question can not be answered.
What gauge wire should be used to run a 230v motor 90 ft away?
To answer this question the amperage or the wattage of the motor must be given.
How many watts is in 9 volts?
You can't convert volts to amperes. Those are quite different units; that would be like converting, say, meters to seconds.
How do you determine if the Primary voltage is unknown but Secondary voltage is given?
If a secondary voltage is given across a particular resistive load in a series of known resistive loads, multiply the voltage by the ratio of the total load to the measures load to get total voltage. Example: You have a series of a 200 ohm resistor to a 100 ohm resistor. The votage measured across the 100 ohm is 2 volts. 200 + 100 = 300. 300 / 100 = 3. 2 X 3 = 6. Total Voltage in the circuit is 6V
How do you compute the watt of heater with volt and resistance are the given?
You must first solve for current or amperage, if you know only voltage and resistance. The symbol for current is normally "I" or "A". The formula is A=V / R . So divide the voltage by the resistance to obtain the current. Then the formula for wattage or power (P) is P= V x A . So then you would multiply the voltage by the current to obtain the power in watts.
How much watts is 3.5 kV?
There are zero watts in 3.5 kilovolts. Watts are the product of Amps x Volts. Without an amperage stated the wattage can not be given.
What size wire 100 kva transformer?
Wire sizing of a feed conductor is based on the amperage that a device draws. To calculate amperage from KVA a voltage of the supply has to be stated. Without this voltage and whether the transformer is single or three phase an answer can not be given.
How do you calculate the size of cable for 1000kw generator?
Without knowing the nominal voltage, you cannot determine the load current and, therefore, cannot determine the cable size. <<>> The sizing of cables or conductors is based on the amperage that the conductor can safely carry. The formula for amperage is I = W/E. Amps = 5000/Volts. With out a voltage stated an answer to this question can not be answered. When you calculate the amperage, re-ask your question for a conductor size for a given amperage.
