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

Disk light second in circumference were to spin at 60 rpm, Q. What would oc...

Q. What would occur if a disk one light second in circumference were to spin at 60 RPM? Answer:- 60 revolutions for each minute is one revolution per second. 1 light se

Why is heavy water used as a moderator, Why is heavy water used as a modera...

Why is heavy water used as a moderator? Heavy water is a type of water highly enriched in the hydrogen isotope deuterium. We can conclude the neutron interactions with billiard

Uv radiations and x - rays are, UV radiations and  X - rays are: UV r...

UV radiations and  X - rays are: UV radiations are produced by the high energy transitions of the electrons in atoms. UV radiations have wavelengths ranging from 0.4 m m to 1n

Plot the engineering stress strain curves, Given the properties in the tabl...

Given the properties in the table below a. Plot the engineering stress-strain curves for the 3 materials. You can assume the materials behave linearly when they plastically

Process to calculate teh number of atoms per unit cell, Process to calculat...

Process to calculate teh number of atoms per unit cell The number of atoms per unit cell is equal to the product of 'the number of atoms per basis' and 'the number of basis per

Grating, plane transmission grating

plane transmission grating

Simple harmonic motion, show that the oscillation of a liquid in a u-tube i...

show that the oscillation of a liquid in a u-tube is in simple harmonic motion

What is friction?, What is Friction? When we think about friction, ther...

What is Friction? When we think about friction, there is one more place for energy to go - heat. When you push a book across a table, does the energy of the book change? Not if

Constraint relation in pulley., give me a very detailed exlanation of find...

give me a very detailed exlanation of finding d Constraint relaion in strings and how do u find it do set a reference point from which u start taking d Velocities/Accelerations d 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