Direct current (DC) means the electrons move in one direction.
Alternating current (AC) means the electrons flow first in one direction, then in the reverse direction, then in the first direction again - and so on - and this happens many times every second..
Another answer
Electricity is the flow of tiny particles called electrons that move through a conductor (wire). But before the electrons can flow, they need a force to get them to start moving. That force is called electromotive force (EMF) or voltage. The EMF can be produced by magnetism, friction, pressure, heat, light, and/or chemical action. The most popular source is magnetism (as is used in generators) and chemical action (as is used in batteries).
Once AC electricity has been generated in a power station, it first goes to a main transformer station where the voltage is stepped up to a very high level to be sent over long distances. It's then bumped down at other Transformers - in regional and local area sub-stations - to be distributed to businesses and homes.
In some countries they use 120 volts AC for small things like lights, coffee machines, televisions, etc. and 240 volts AC to operate large appliances like washers and dryers and other equipment such as air conditioners, water heaters and kitchen ranges. In other countries they use 230 volts AC for both small and large appliances and other equipment.
A wind turbine is a device that uses blades to capture kinetic energy from the wind and convert it into electricity through a generator.
Electricity produces heat when electrons moving through a material collide with its atoms, causing them to vibrate and generate thermal energy. It produces light when electrons moving in a material jump to higher energy levels and then return to their original position, emitting photons in the form of light energy.
The types of mechanical work include static work, dynamic work, and intensive work. Static work refers to work done without motion, dynamic work involves movement, and intensive work focuses on the internal energy changes within a system.
Input work is the work done on a machine, while output work is the work done by the machine. Efficiency of a simple machine is calculated as the ratio of output work to input work. The efficiency of a simple machine is high when the output work is close to the input work, indicating that the machine is converting most of the input work into useful output work.
The formula that relates work and power is: Power = Work / Time. Power is the rate at which work is done, which is the amount of work done divided by the time it takes to do that work.
water, solar sun, gas, coal, fossil fuel, oil, nuclear[baned]
Very much!
watts
to create electrity
Metal plus Energy
Wireless electrity and he did.
The electrical resistivity of technetium is 200 nanoohm.m.
The United States, since 2007
1752 ben franklin invented electrity
in very dry conditions
i think they send bolts of electrity thrught the water
generators produce electricity via electromagnetic induction