Volts of power? Your question makes no sense. To remove a lug nut use an air impact wrench or a hand wrench and just take it off. Volts has nothing to do with it even if you were using an electric air impact wrench. On an electric air wrench the power of the wrench is measured in torque not volts.
Impossible to know. You need to know both the voltage and current draw to calculate power (watts). Power in watts = Volts X Amps
Watts = Volts x Amps So you need to know the current. This is only for resistive load.
To work this out you will need to know the current that is travelling through the device. You can then find the number of volts by dividing the power (watts) by the current (amps).
You need to have the amperage to determine how many volts you get out of 20 watts.
watts = volts x amps, example-2 watts=2 volts x 1 amp, example- 2 watts=120 volts x .60 amp.
You look at the job you need to do, ie, how many volts and amps, or volts and watts, that you need. Then you look in the catalogs for a solar cell or solar cell array to produce that much power.
If you are looking for a power inverter then you are going to need to take a number of things into account. These power inverters are not all equal, and they will vary in price and functionality. This blog will look at how you can narrow down your search to the right power inverter for your needs.
You will need to purchase a power inverter. Click the link for one I found.
Watts is a power level, not a voltage. The wattage in a circuit is defined as Volts x Amps, so you need to know the current before you can work out the voltage.
It depends upon how far you need to take it.
a jeep Cherokee need 220 volts to run
Wattage refers to power power is voltage times current. P = V*I Therefore, in order to know the voltage you need you also need to measure the current (units of amps).