The standard unit of electric energy is the Watt Hour.
The battery is supplying electrons by a process of chemical reaction.
The most energy used in a circuit is at the load.
There are a number of components in any circuit and their job is to restrict the flow of electrons and reduce the current or voltage flowing by converting electrical energy to heat. In other terms, electronics control the electrical circuit. Electric charge is nothing but the flow of electrons from one object to another. The working of the microwave is the example of how electronics work. In a microwave, electricity provides the power that generates high-energy waves that cook your food and electronics controls the electrical circuit that does the cooking.
The function of a light bulb in an electric circuit is that it turns electrical energy into light.
Sr has two electrons in the highest occupied energy level
The standard unit of electric energy is the Watt Hour.
A: NO voltage is a potential that theoretically can exits without any current flow
Voltage
Equivalent to ENERGY transfer
The unit volt is dimensionally joules per coulomb (Energy / Charge). For a give amount of electric charge, higher voltage means more energy.The unit electron volt (eV) has the dimension of energy: 1 Volt times the charge on 1 electron.AnswerElectrons don't transfer energy in a circuit. If you think about it, it should be obvious. In the case of d.c., electrons move so slowly that they couldn't possibly be transferring energy from the supply to the load. In the case a a.c., they are continually moving backward and forward, so cannot transfer energy from the supply to the load. Energy is transferred by a combination of the electric and magnetic fields, probably by means of the 'Poynting field', which is external to the conductors.
This is known as electron-transfer (ET).
Electrons in a covalent bond come from the highest occupied energy level.
The transfer of electrons
That's called electrical energy.
Speed of electronsYou can indeed calculate this if you have much more information. (See the nearby link.) But the surprising thing is that the electrons travel VERY SLOWLY. In fact, if the electrons had to get to the lamp before you would see the light, we would wait several seconds in the dark each time we turned on the light.So the energy transfer in a circuit is wildly different from the electron transfer.
The energy moves but the medium stays put. A cork will rest in one spot with the waves passing underneath it. In an electrical circuit the energy moves, but the electrons remain in place.
potential energy