That appliance might last longer if you use an eight volt adapter rather than a nine volt adapter.
The equation for wattage is W = A x V. Substitute your values into this equation and you will have your answer.
Yes, this can be done. The adapter will handle at 120 volts x 15 amps = 1800 watts. The adapter is just a step up transformer. The maximum 220 volt device that can be connected can only have an amperage rating of 8 amps at 220 volts.
No, a 200 volt appliance is designed to operate on a 200 volt circuit. Plugging it into a 240 volt circuit could damage the appliance or cause it to malfunction. It is important to use appliances with the correct voltage requirements to ensure safe and proper operation.
You could burn out the device you're powering.
You can but the motor may not run, however you will not burn the motor.
Yes, you can get an adapter for your headphones. You would want a stereo adapter from 1/4 inch to 1/8 inch. They should be available at any Radio Shack or electronics store.
Janos Volt is 5' 8".
Use 8 gauge wire.
Yes, if you put them in series.
No, you cannot charge an 8 volt battery with a 6 volt charger. The voltage of the charger must match the voltage of the battery.
No
No you cannot.