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

What are the stars, What are The Stars? The star is made of dust and ga...

What are The Stars? The star is made of dust and gas in space. Essentially it has many stages they are 1.black hole 2.nuetron star 3.supernova 4.red giant stage

Moment of disk or solid cylinder about axis, Moment of Disk or Solid Cylind...

Moment of Disk or Solid Cylinder about Axis We presume the axis of rotation is perpendicular to the disk and through its center and coincident with the axis of the cylinder. Co

Resolution of forces by calculation, Resolution of Forces by Calculation: ...

Resolution of Forces by Calculation: One vector was resolved into two mutually perpendicular components. So if there are several vectors each can be resolved into two

Simple microscope, calculate the magnifying power of a simple microscope wh...

calculate the magnifying power of a simple microscope whose focal length is 6 cm and the distance of distinct vision of 25 cm

Kinematics, the difference and examples of kinematic in one dimension from ...

the difference and examples of kinematic in one dimension from two dimension?

What is a capacitor, Q. What is a capacitor? Define: capacitance. i) A...

Q. What is a capacitor? Define: capacitance. i) A capacitor is a apparatus for storing electric charges. ii) The capacitance of a conductor is defined like the ratio of the

At what time do the cars meet, Two cars head out in the similar direction. ...

Two cars head out in the similar direction. Car A starts 1.0 min before car B. The position-time graphs for both cars are shown in the accompanying figure. a. How far apa

Fsdfasdf, #questidfasdfasdfasdfasdfon..

#questidfasdfasdfasdfasdfon..

Atomic physic, why rutherford''s atomic model is failure

why rutherford''s atomic model is failure

Explain buoyancy in air, Explain Buoyancy in Air The same buoyancy happ...

Explain Buoyancy in Air The same buoyancy happens in air. This is how hot air balloons fly. By heating the air and lowering the density of the air in the balloon, the balloon f

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