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

Force, explain with the aid of a diagram what is meant by the moment of a f...

explain with the aid of a diagram what is meant by the moment of a force about point

What is the maximum height reached by the ball, In an attempt to make a 3-p...

In an attempt to make a 3-point shot from a distance of 6.00 m, a basketball player lofts the ball at an angle of 68° above the horizontal. The ball has an initial velocity of 10.0

Explain the merits of vacuum diode over semiconductor diode, Explain the Me...

Explain the Merits of Vacuum Diode over Semiconductor Diode (i)  Vacuum Diodes can withstand high reverse voltages (ii)  Vacuum Diodes can operate at fairly high temperature

What is potential difference , It is the difference among potential at two ...

It is the difference among potential at two points of a conductor. Please note that by potential(at a point A) ,we actually mean potential difference  among  point A and another

Can light is made to move/change along a side emitting optic, Can light is ...

Can light is made to move or change along a side emitting optics? Along with roped or braided multicore fiber and a particular process at the common end optics can be made to c

What are non-mechanical waves , The waves which do not needs medium for the...

The waves which do not needs medium for their propagation are known as non- mechanical or electromagnetic waves. Examples : Light, heat (Infrared), radio waves, gamma- rays, X-r

Reflection?, I have a chandelier that hangs in front of my tv, when I look ...

I have a chandelier that hangs in front of my tv, when I look at the tv I can see the chandelier in the tv. What physics phenomenon is this? reflection?

Describe critical angle, The measurements taken in Ramdesns eyepiece more w...

The measurements taken in Ramdesns eyepiece more worthy (reliable) than Huygens eyepiece. Why? Describe critical angle. show its relationship with refractive index.

Schottky barrier diodes, The Schottky diodes are a semiconductor diode with...

The Schottky diodes are a semiconductor diode with a low forward voltage drop and a very fast switching action. The voltage drop at forward biases of around 1ma is in the range 0.1

Young two slit interference experiment, If Young' two slit interference exp...

If Young' two slit interference experiment is done with white light what could be seen?

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