Electrical energy, Physics

Assignment Help:

Electrical energy:

Electrical energy is the ability of an electrical system to do work.

Energy is expended when work is done and the amount of energy used is equal to the work done.  The units of energy and work are the same, that is joules and the same equation is used for both.

          Energy  =  Work  =  VIt joules

The energy a body contains may be determined by calculating the electrical work done on the body to give it that energy.  Conversely, the work that a body could do if it used up all its energy may be determined by calculating how much energy it contains.

This assumes that no energy is lost in the conversion.  In practice energy is often 'lost' in the form of heat.

However no energy is actually destroyed, it is simply converted into some other form.  This is stated in the Law of Conservation of Energy  -  energy can neither be created nor destroyed but merely changed into other forms.

 

 


Related Discussions:- Electrical energy

Vector, two forces at right angle with each other have a resultant of 58kN,...

two forces at right angle with each other have a resultant of 58kN, If one of the forces is 40kN find the magnitude of the other forces

Other, A simple harmonic oscillator of amplitude A has a total energy E. De...

A simple harmonic oscillator of amplitude A has a total energy E. Determine (a) the kinetic energy and (b) the potential energy when the position is one-third the amplitude. (c) Fo

Expermient of containers from used electric bulbs, Containers from used ele...

Containers from used electric bulbs Used electric light bulbs can be made into containers that will substitute for flasks, beakers, test tubes and same devices. With reasonable

Principle of electric motor, An electric motor is a device which converts e...

An electric motor is a device which converts electrical energy into mechanical energy. Principle of electric motor : An electric motor essentially consists of a rectangular co

Explain the acoustic cavitation, Explain the acoustic cavitation. Acous...

Explain the acoustic cavitation. Acoustic Cavitation: Usually, cavitation is the phenomenon where largely and small empty cavities are generated into fluids that expand to l

Energy levels of this molecule, The microwave (rotational) spectrum of 12 ...

The microwave (rotational) spectrum of 12 C 16 O having  a series of lines spaced by 115.3 GHz. Suppose that the rotational  energy levels of this molecule can be approximated by

Relation between the electric displacement and current, Derive the relation...

Derive the relation between the magnitude of electric displacement and displacement current.

Amperes law, The line integral of the magnetic flux about a closed curve is...

The line integral of the magnetic flux about a closed curve is proportional to the algebraic total of electric currents passing through that closed curve; or, in differential form,

Laser, why we use he-ni laser light in michelson interferometer

why we use he-ni laser light in michelson interferometer

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd