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

Manufacturing of optical fibres by double crucible method, Understand the m...

Understand the manufacturing technique of optical fibres by using double crucible method. In double crucible method the inner platinum crucible has core material into molten fo

Dual nature of light, Dual Nature of Light: As light is accepted as a f...

Dual Nature of Light: As light is accepted as a form of waves as well as packets of photon. This nature of light is known as dual nature of light.

Electric force dipole, An infinite line of positive charge lies along the y...

An infinite line of positive charge lies along the y axis, with charge density ? = 1.90 µC/m. A dipole is placed with its midpoint along the x axis at x = 22.00 cm. The dipole cons

Bulbs can fail without blowing the fuse - electricity, A holiday light stri...

A holiday light string of ten bulbs is equipped with shunts that short out the bulbs when the voltage drop increases to line voltage, which happens when a bulb burns out. Every bul

Classes of magnetic materials: nickel iron alloys, It contains 35%- 90% nic...

It contains 35%- 90% nickels. Higher is the nickel content higher is the permeability and lower is the magnetic saturation of the alloy. MN, CO, and Mo can also be added in trace q

Power, if a big person and a small person run up the stairs in the same tim...

if a big person and a small person run up the stairs in the same time, which of them develops the most power

Photoelectric effect, Photoelectric effect An effect described by A. E...

Photoelectric effect An effect described by A. Einstein that demonstrates that light appears to be built up of photons or particles. Light can do excite electrons (called phot

What is the angular acceleration, The merry-go-round described in the previ...

The merry-go-round described in the previous problem is pushed with a constant force of 53 N. What is the angular acceleration?

Difference between optical diffraction and interference, Give at least two ...

Give at least two differences between optical diffraction and optical interference phenomena.

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