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

Equilibrium, what is the effect of torque and equilibrium on taps, doors,ha...

what is the effect of torque and equilibrium on taps, doors,handle bars and bicycles??

Galvanometer., why horse shoe magnet is use in galvanometer

why horse shoe magnet is use in galvanometer

Explain about the double-crucible method, Explain about the double-crucible...

Explain about the double-crucible method. Low loss fibers are mostly manufactured by using double crucible and vapour phase deposition method. The double-crucible method is

Physical significance of curl of a vector function, Describe the physical s...

Describe the physical significance of curl of a vector function?

Easier to pull a lawn roller than to push it, Explain why easier to pull a ...

Explain why easier to pull a lawn roller than to push it? Explaination :  In Pulling, effective weight of lawn mover= mg-fsinx In pushing, effective weight = mg+

Determine the x and y coordinates - vertical circle, A 0.500 kg stone attac...

A 0.500 kg stone attached to the end of a string is whirled in a vertical circle of radius 1,20 meters. The center of the vertical circle is 1.50 meters above the ground. When the

What is the name of this phenomenon, The index of refraction of a particula...

The index of refraction of a particular medium is nearly the same for all wavelengths hence we often associate a single value the average value of the index of refraction to the me

What is photoelectric effect, Q What is photoelectric effect? Photoelec...

Q What is photoelectric effect? Photoelectric release is the phenomena by which a good number of substances chiefly metals emit electrons under the influence of radiation such

Fundamental postulates of special theory of relativity, Q. State the fundam...

Q. State the fundamental postulates of special theory of relativity? The two basic postulates of the special theory of relativity are: (i) The laws of Physics are the simila

Inductor construction, An inductor is generally constructed as a coil of co...

An inductor is generally constructed as a coil of conducting material, characteristically copper wire, wrapped around a core either of air or a ferromagnetic material. Core materia

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