That amount is always less than the energy you put into the system.
Divide the amount of useful energy you get from a system by the amount
of energy you put into it, and you find the system's 'efficiency'.
The maximum amount of voltage that a surge protector will allow through itself before it will suppress the power surge. When the device reaches its clamping voltage, it blocks any further current from flowing through the device and into a computer system or other electronic device. Source: http://www.webopedia.com/TERM/C/clamping_voltage.html
How fast work happens or how quickly energy is transferred.
Half The time. In Physiology power is the amount of work done per unit of time, obviously you are a student so think kid.
It is not currently a valid source on earth. The cost, in terms of power to create a panel, is more then the expected power derived over their short lifespans. They produce no real power as of yet. Solar panels are fine for remote power or for backup, but are far from green due to their power to create verses power derived.
A device which gets its electrical power from the Universal Serial Bus. A USB port should be capable of powering small devices.
The power rating of the electrical device or system. The duration for which the device or system is in use. The efficiency of the device or system in converting electrical energy into useful work.
A device or circuit that provides power to the rest of the circuit or system is called a power supply,
Most headphones draw the exact same amount of power from your audio device.
Electrical energy depends on factors such as the voltage of the system, the current flowing through the system, and the time for which the system is consuming power. These factors combine to determine the overall amount of electrical energy used by a device or system.
electric generator is a device which can send amount of electricity to different places
That may refer to the system's efficiency (which is formally the amount of useful output power divided by the amount of input power).
Peak wattage refers to the maximum amount of power output that a device or system is capable of generating or handling at one time. This measurement is useful for determining the peak performance capacity of appliances, electronic devices, or power sources.
The Source.
To determine the amount of electricity consumed by a device or appliance, you can use a device called a wattmeter or check the device's power rating in watts and the time it is used to calculate the energy consumption in kilowatt-hours.
no it does not in a way it does it depends on the device and how it is setup. Most today devices need diffrent amount of power for what they are doing if at one moment a device is needing only 12V to operate but the next minute it may need 208V just an example it depends if they device can control the amount of power it consumes however if the device is capaple and wants to use 230V then it will.
The wind produces energy by pushing against a fan. The fan operates a power making device ( generator, turbine) to produce the electricity. The amount of wind can make more or less power from the system.
Yes, a USB port can supply a small amount of power for attached devices.