How can lenz law explain law of conservation of energy??, Physics

Assignment Help:

Lenz''s Law states that the Nature of induced emf in the coil is such that it opposes the causes of it.

It can be explained by a simple understanding of Faraday EM induction experiment. When we push the N-pole of magnet towards the coil, the flux change with coil is such that it develops a North Pole on it. Therefore they form like pairs of magnet, which opposes the relative motion. Therefore An External force is required to push the magnet. When we pull the magnet out, Coil develops a South Pole which attracts it. Hence Again Some Mechanical Force is required.

Therefore Lenz modified Faradays Equation as

E=-d?/dt

where E=induced emf, ?=magnetic flux associated with it.

Negative Sign shows that the EMF is of opposite polarity than the Magnetic Flux.


Related Discussions:- How can lenz law explain law of conservation of energy??

Omega, ohm; Omega; O (after G. Ohm, 1787-1854): The derived SI unit of...

ohm; Omega; O (after G. Ohm, 1787-1854): The derived SI unit of electric resistance, described as the resistance among two points on a conductor while a constant potential dif

Evaluate the temperature rise of the body, During light activity, a 70-kg p...

During light activity, a 70-kg person may generate 200 kcal /h. Assuming that 20% of this goes into useful work and the other80% is converted to heat, calculate the temperature ris

Grandfather paradox, Grandfather paradox: A paradox proposed to discou...

Grandfather paradox: A paradox proposed to discount time travel & revel why it violates causality. Say that your grandfather constructs a time machine. Currently, you employ h

Describe features of wave motion , a) It is a sort of disturbance which goe...

a) It is a sort of disturbance which goes by a medium. b) Material phase is necessary for the propagation of mechanical waves. c) When a wave motion goes by a phase, molecule

Define frozen solid, Define Frozen Solid (Moscow Phys-Tech)? Evaluation...

Define Frozen Solid (Moscow Phys-Tech)? Evaluation how long it will take for a small pond of average depth D=0.5 m to   freeze entirely   in   a   very cold winter, when   the

Viscosity of liquid, How to determine the co efficient of viscosity of liqu...

How to determine the co efficient of viscosity of liquid by capillary flow method?

Net Torque, A 65g ball with a diameter of 3.1cm begins at rest and rolls do...

A 65g ball with a diameter of 3.1cm begins at rest and rolls down an incline. The angular acceleration of the ball is a constant 0.55rad/s2. ( I ball=(2/5)mr2 ) Calculate the net t

Which of the following are isoelectronic with one another, Which of the fol...

Which of the following are isoelectronic with one another: (1)Na + ans Ne   (2)K + ans O       (3)Ne ans O          (4)Na + ans K + Ans: Na + ans Ne

Polarisation, production and analysis of diffrent polarised light

production and analysis of diffrent polarised light

Electrical Symbols, how does electrical symbols positively affects in our E...

how does electrical symbols positively affects in our Electrical subjects

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