Lenz’s law , Physics

Assignment Help:

LENZ’S LAW 

2256_lenz law.png

A change of flux in a closed circuit induces an emf and sets up a current.  The direction of this current is such that its magnetic field tends to oppose the change of flux.  See diagram below.

 

The direction of the induced emf as given by Lenz's Law may be shown in our equation by introducing a negative sign, but remember that the negative sign is vectorial and not arithmetic.

Hence, 2278_lenz law1.png

This formula is not strictly correct. A conductor must cut 108 lines of flux per second in order to induce 1 volt.  That is the flux must be changing at a rate of 108 lines per second.  The formula should therefore be written as:

2272_lenz law2.png

 


Related Discussions:- Lenz’s law

Explain static electricity, Static Electricity: 1. There are two types ...

Static Electricity: 1. There are two types of charges positive and negative. 2. Like charges repel and unlike charges attract each other. 3. Charged bodies make electric

Phase angle, Two particles execute S.H.M of same amplitude and frequency ,a...

Two particles execute S.H.M of same amplitude and frequency ,along the same straight line from same mean position.They cross one another without collision,when going in opposite di

Basic principles of spectrophotometry, Basic principles of spectrophotometr...

Basic principles of spectrophotometry: An absorbance spectrophotometer is an instrument that measures the fraction of the incident light transmitted through a solution

What is the ohm law, What is the Ohm Law? Ohm discovered that the amoun...

What is the Ohm Law? Ohm discovered that the amount of current was directly proportional to the voltage (more voltage gives more current) and inversely proportional to the resi

Explain electric motor, Electric Motor: A device, which converts electr...

Electric Motor: A device, which converts electric energy into mechanical energy is known as Electric Motor. Factors on which the speed of Rotation of Motor Depends: The

Potential barrier, The potential difference created across the P-N junction...

The potential difference created across the P-N junction due to the diffusion of electron and holes is called potential barrier. For and for silicon    On the average the

Average velocity and speed, The average speed of a substance in a given int...

The average speed of a substance in a given interval of time is explained as the ratio of the distance done to the time taken whereas; average velocity is explained as the ratio of

Heisenberg uncertainty principle, It is explained by Heisenberg's uncertain...

It is explained by Heisenberg's uncertainty principle, it is impossible to calculate simultaneously both the position and the momentum of the particle. Let x and p be the uncert

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