If your talking about a pilot in a furnace or fireplace, then its because the gasvalve is powered by a thermocouple. The thermocouple is 2 dissimilar metals fused together, when heated it produces a small amount of electricity to hold the valve open.
Most headphones draw the exact same amount of power from your audio device.
The servers that manage "Fantasy Football" consume the bulk of the electricty generated in the US.
Some chargers consume a small amount of power when plugged in, even if no device is attached, due to standby power consumption. This is often referred to as "vampire power" or "phantom load." To minimize energy waste, it is recommended to unplug chargers when not in use.
The time it takes to consume 12,600 watt-hours depends on the power consumption rate of the device in watts. For example, if a device uses 1,000 watts, it would take 12.6 hours to consume that amount (12,600 watt-hours ÷ 1,000 watts = 12.6 hours). Conversely, if the device consumes 2,000 watts, it would take 6.3 hours. Simply divide 12,600 watt-hours by the wattage of the device to find the time in hours.
Yes. Almost every electronic device consumes energy, however small. However the power draw of a voltage regulator is extremely tiny, typically less than 1mA. As such, they usually save more power than they consume.
Leaving a receptacle energized will not consume power, some things left plugged in while not in use will consume power.
Power used in what?
A pilot light typically consumes about 600-900 cubic feet of gas per year.
A pilot light typically consumes about 2 to 3 gallons of propane per month.
No. No device creates more power than it consumes. There are always losses - friction, heat, etc. - so it is impossible to create a perpetual motion machine.
The device consumes 84 watts of power. This can be calculated by multiplying the voltage (12 volts) by the current (7 amps). So, 12 volts x 7 amps = 84 watts.
Yes, it is possible to have very little power but still consume a lot of energy over time. Power measures how quickly energy is used, while energy measures the total amount used. For example, a low-power device running constantly over a long period can consume a significant amount of energy even though it has low power.