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Wattage = voltage times amperage. That's for DC.
For AC there is a power factor PF = cos phi you have do multiply with.
Another Answer
There are lots of different ways of calculating power; it depends entirely on what information you have to start with. In basic terms, power is simply work divided by time.
Wiki User
∙ 10y ago
Watts are determined by multiplying the voltage (V) with the current (A) flowing through a circuit. The formula to calculate power (P) in watts is P = V x I.
Wiki User
∙ 14y agoYou can calculate wattage 3 ways:
- Watts = E2/R
- Watts = I2x R
- Watts = E x I.
Wiki User
∙ 10y agoWatts can be checked and measured by using an instrument called a multimeter. The multimeter will measure different details of an electrical circuit.
Wiki User
∙ 12y agothrough A wattmeter. it reads and measures the electric power of a circuit.
Wiki User
∙ 8y agoWattage can be determined by three equations. They are W = I x E, W = I squared x R and W = E squared/R. W = watts, I = amps, E + volts and R = resistance in ohms.
Wiki User
∙ 15y agoWatts is the product of Amps x Volts.
Wiki User
∙ 14y agoAmps times Volts
Wiki User
∙ 8y agoVolts x Amps
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How much watts in 16kv?
To calculate the watts in 16kV, you would need to know the current flowing through the circuit. The formula to calculate watts is Watts = Volts x Amps. Without the value of current (Amps), we cannot determine the watts.
0.36 amps equals watts?
To determine the watts, you need to know the voltage. Watts = Amps x Volts. Without the voltage, it is not possible to accurately calculate the watts from only the amperage.
How many watts in 20 volts?
To calculate the number of watts when given volts, you also need to know the current (in amps) flowing through the circuit. The formula for power (in watts) is P = V x I, where P is power in watts, V is voltage in volts, and I is current in amps. Without knowing the current, we cannot determine the number of watts from just volts.
How do you determine the amps for a halogen lamp?
To determine the amps for a halogen lamp, divide the wattage of the lamp by the voltage it operates on. The formula is: Amps = Watts / Volts. This will give you the amperage required for the halogen lamp.
How many watts are in 30 volts?
To calculate the power in watts, you will also need to know the current in amperes. The formula to calculate power is P (watts) = V (volts) x I (amperes). If you only have the voltage (30 volts) and not the current, you cannot determine the power in watts.
0.36 amps equals watts?
To determine the watts, you need to know the voltage. Watts = Amps x Volts. Without the voltage, it is not possible to accurately calculate the watts from only the amperage.
How do you determine system watts for lighting?
The equation is quite simple. Multiply the number of lights on the system by their wattage to determine the system wattage.
The power of lightbubs is measured in what?
The power of lightbulbs is measured in watts. This measurement indicates how much energy the lightbulb consumes and helps determine its brightness.
How do you determine the amps for a halogen lamp?
To determine the amps for a halogen lamp, divide the wattage of the lamp by the voltage it operates on. The formula is: Amps = Watts / Volts. This will give you the amperage required for the halogen lamp.
How many watts are in 30 volts?
To calculate the power in watts, you will also need to know the current in amperes. The formula to calculate power is P (watts) = V (volts) x I (amperes). If you only have the voltage (30 volts) and not the current, you cannot determine the power in watts.
How many watts are in 0.1A?
To calculate the number of watts in 0.1A, you need to know the voltage of the circuit. The formula for power is P = V x I, where P is power in watts, V is voltage in volts, and I is current in amperes. Without knowing the voltage, it is not possible to determine the power in watts.
How many watts in 20 volts?
To calculate the number of watts when given volts, you also need to know the current (in amps) flowing through the circuit. The formula for power (in watts) is P = V x I, where P is power in watts, V is voltage in volts, and I is current in amps. Without knowing the current, we cannot determine the number of watts from just volts.
How many Watts equals 95VDC?
To calculate the power in watts, you need both the voltage and current. Without knowing the current, it's not possible to determine the wattage just from the voltage provided (95VDC).
How many watts is in 2 amps?
To calculate the watts from amps, you need to know the voltage of the circuit. The formula to calculate watts is: Watts = Amps x Volts. So, without knowing the voltage in the circuit, it is not possible to accurately determine the wattage from just knowing the amperage.
How many watts in 240volts?
There are zero watts in 240 volts. To determine watts, an amperage or a resistance must be supplied. W = Amps x Volts, W = Amps (squared) x Resistance (in Ohms), or W = Voltage (squared)/Resistance.
Convert horsepower to watts?
Depends upon the voltage. At 110 volts, 800 watts = 7.27 amps. At 115 volts, 800 watts = 6.96 amps. At 120 volts, 800 watts = 6.67 amps. At 220 volts, 800 watts = 3.64 amps. Just divide the wattage by the voltage to determine the amperage. (You can also divide the wattage by the amperage to determine the voltage!)
5.0 amps watts?
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).
