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How long would a 12 volt 7 amp hour battery last if converted to 120 volts ac using 20 watts?
Wiki User
∙ 12y ago
Assuming this could be done with no conversion loss a 20 watt load at 120 volts would require about 1/6 of an amp. A 7 ampere hour battery would run the load for 6 x 7 = 42 hours.
However, if you actually built a circuit to up convert 12 volts DC to 120 volts AC there would be significant conversion losses.
Wiki User
∙ 12y ago
Assuming 100% efficiency in the conversion process, the power output would be 7 hours at 12 volts, so the total watt-hours of energy stored in the battery would be 12 volts * 7 amp-hours = 84 watt-hours. With a load of 20 watts, the battery would last 84 watt-hours / 20 watts = 4.2 hours when converted to 120 volts AC.
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What is the watts if a 12 volt battery produces 2.7 amps?
The power output of a 12-volt battery producing 2.7 amps can be calculated using the formula: Power (watts) = Voltage (volts) x Current (amps). So, in this case, the power output would be 12 volts x 2.7 amps = 32.4 watts.
How many watts does my 12 volt 2 amp battery charger draw?
Your 12 volt 2 amp battery charger draws 24 watts of power (12 volts x 2 amps = 24 watts).
How many watt in amp?
Watts cannot be directly converted to amps because the two units measure different quantities. Watts are a measure of power, while amps are a measure of electrical current. The relationship between watts, amps, and voltage is given by the formula: Watts = Amps x Volts.
How many amps are in 2000 watts using 110 volts?
To calculate the amps, you can use the formula: Amps = Watts / Volts. So, for 2000 watts and 110 volts, 2000 watts / 110 volts equals approximately 18.18 amps.
How many amps is 500 watts for a jump starter?
To calculate the amps for a jump starter with 500 watts, you can use the formula: Amps = Watts / Volts. If assuming a standard 12-volt car battery, the calculation would be 500 watts / 12 volts = 41.67 amps.
What is the watts if a 12 volt battery produces 2.7 amps?
The power output of a 12-volt battery producing 2.7 amps can be calculated using the formula: Power (watts) = Voltage (volts) x Current (amps). So, in this case, the power output would be 12 volts x 2.7 amps = 32.4 watts.
How many watts does my 12 volt 2 amp battery charger draw?
Your 12 volt 2 amp battery charger draws 24 watts of power (12 volts x 2 amps = 24 watts).
How many watt in amp?
Watts cannot be directly converted to amps because the two units measure different quantities. Watts are a measure of power, while amps are a measure of electrical current. The relationship between watts, amps, and voltage is given by the formula: Watts = Amps x Volts.
How many amps are in 2000 watts using 110 volts?
To calculate the amps, you can use the formula: Amps = Watts / Volts. So, for 2000 watts and 110 volts, 2000 watts / 110 volts equals approximately 18.18 amps.
Why kilo watts converted in kilo volts?
Kilowatts are never converted to kilovolts. There's no direct relationship between them, without involving other quantities in the circuit. Watts = (volts) times (amperes) Kilowatts = (kilovolts) times (amperes) Kilovolts = kilowatts/amperes
How do you solve for current using volts and watts in a problem?
Amperes measure the rate of flow of electricity in a conductor Volts measure electrical pressure Watts measure the amount of energy or work that can be done by Amperes and Volts Relationship: Work = Pressure x Flow or Watts = Volts x Amperes When you know two variables you can calculate the other Formulas - This formula referred to as the West Virginia Formula (W - VA)Watts = Volts x Amps Volts = Watts / Amps Amps - Watts / Volts Refer to link below for more information
How many amps is 500 watts for a jump starter?
To calculate the amps for a jump starter with 500 watts, you can use the formula: Amps = Watts / Volts. If assuming a standard 12-volt car battery, the calculation would be 500 watts / 12 volts = 41.67 amps.
How do you find OHM?
Ohms can be found by using these formulas. Ohms = Volts/Amps, Ohms = (Volts (squared))/Watts, Ohms = Watts/(Amps (squared)).
How many amps is 450 watts?
To convert watts to amps, you can use the formula: Amps = Watts / Volts. For example, if you're using a 120V circuit, 450 watts would be equal to 3.75 amps (450 watts / 120 volts = 3.75 amps).
37.5 amps converted in watts?
To convert amps to watts, you also need the voltage. The formula to calculate power in watts is Watts = Amps x Volts. If the voltage is 120V, then 37.5A would be equivalent to 4500W (37.5A x 120V = 4500W).
What does 1.5 watts equal to amp using 12 volts?
To find the amperage, use the formula: Amps = Watts / Volts. So, for 1.5 watts at 12 volts, the amperage would be 0.125 amps.
Is 17 watts 120 volts?
No. Watts = Volts x Amps Watts does not directly convert to volts.
