0
How long would a 12 volt 7 amp hour battery last if converted to 120 volts ac using 20 watts?
Wiki User
∙ 11y 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
∙ 11y ago
Add your answer:
Earn +20 pts
37.5 amps converted in watts?
To convert amps into watts a voltage is needed. 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 watts does my 12 volt 2 amp battery charger draw?
Volts * Amps = Watts 12 Volt * 2 amp = 24 Watts
Why are some appliances rated in watts and others amps?
When they give you WATTS the also give you VOLTS. Using some very simple math you can then figure out AMPS. WATTS = Amps x Volts
What does 1.5 watts equal to amp using 12 volts?
volts times amps equal watts. So 12 volts times ? amp equals 1.5 watts. The current is 1.5/12 amps, which is 1/8 amp.
37.5 amps converted in watts?
To convert amps into watts a voltage is needed. Watts = Amps x Volts.
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 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 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 do you work out resistance?
Using Ohms law, the resistance can be calculated by using the following formulas. R = Watts/Amps (squared). R = Volts (squared)/Watts. R = Volts/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 watts does my 12 volt 2 amp battery charger draw?
Volts * Amps = Watts 12 Volt * 2 amp = 24 Watts
Is 17 watts 120 volts?
No. Watts = Volts x Amps Watts does not directly convert to volts.
Why are some appliances rated in watts and others amps?
When they give you WATTS the also give you VOLTS. Using some very simple math you can then figure out AMPS. WATTS = Amps x Volts
What does 1.5 watts equal to amp using 12 volts?
volts times amps equal watts. So 12 volts times ? amp equals 1.5 watts. The current is 1.5/12 amps, which is 1/8 amp.
How many watts are in one amp?
There are zero watts in one amp. These are different units they cannot be converted into each other. More information is necessary (like voltage) to establish the conversion.
What is the example of worded using ohms law?
amp*volts=watts
