##### Get a free home demo of LearnNext

Available for CBSE, ICSE and State Board syllabus.
Call our LearnNext Expert on 1800 419 1234 (tollfree)
OR submit details below for a call back

clear
Finding exercises tough? Install LearnNext+ app to watch our videos and get a crystal clear understanding of concepts Install Now X
X

Install the app to watch our videos and get a crystal clear understanding of concepts

Install Now
searchtune

Amarnathreddy M

Feb 1, 2014



Letusknowwhy

Apr 23, 2014



Jul 4, 2014

#### Lenz's law is in accordence with law of conservation of energy,As work done by an external force on the magnet is coverted into kinetic energy of magnet,then electrical energy and then finally into joule's heat energy.Since only energy transformation takes place and no enrgy is created or destroyed,hence law of energy is valid.But if we assume the just oposite of lenz's law,for ex..when we move a bar magnet towards a conducting loop,assume that south polarity is developed towards north pole of magnet,and thus magnet will move by itself to the loop due to force of attraction and hence its kinetic energy is increasing.But in this case the work done by electromagnetic force on the bar magnet  is converted into kinetic energy,electrical energy and finally heat energy.In this case too, K.E of bar magnet is not created,it just formed by the transformation of work done by magnetic force into K.E.So why and how this case violates the LAW OF CONSERVATION OF ENERGY?



The law conservation of energy is always valid it never voilates. Please repost the question with more clarity.

Dec 19, 2014

#### A circular conducting loop of radius r moves through a uniform magnetic field of induction vector B with uniform velocity vector v. The res..



potential difference between A and B is VBr

Sanalkumar S

May 4, 2015

#### Which part of electromagnetic spectrum has largest penetrating power?



Gamma rays

Amarnathreddy M

Feb 1, 2014



Fagunithareja

Aug 10, 2013



Dec 19, 2014

#### In the situation described in figure, the polarity of capacitor is A) B positive with respect to A B) A p..



B)  A positive with respect to B.

By the movement of the magnet, current will be clockwise as seen from the right side of the loop. So plate A will be positive and B negative.

NextGurukul Guest User

Sep 27, 2017

#### Explain lenz law?



Lenz's law is named after the German scientist H. F. E. Lenz in 1834. Lenz's law states that when an emf is generated by a change in magnetic flux according to Faraday's Law, ...

Rithu

Feb 7, 2016

#### Explain eddy current



Eddy current is a localized electric current induced in a conductor by a varying magnetic field....

Amarnathreddy M

Feb 1, 2014



Letusknowwhy

Apr 23, 2014



Jul 4, 2014

#### Lenz's law is in accordence with law of conservation of energy,As work done by an external force on the magnet is coverted into kinetic energy of magnet,then electrical energy and then finally into joule's heat energy.Since only energy transformation takes place and no enrgy is created or destroyed,hence law of energy is valid.But if we assume the just oposite of lenz's law,for ex..when we move a bar magnet towards a conducting loop,assume that south polarity is developed towards north pole of magnet,and thus magnet will move by itself to the loop due to force of attraction and hence its kinetic energy is increasing.But in this case the work done by electromagnetic force on the bar magnet  is converted into kinetic energy,electrical energy and finally heat energy.In this case too, K.E of bar magnet is not created,it just formed by the transformation of work done by magnetic force into K.E.So why and how this case violates the LAW OF CONSERVATION OF ENERGY?



The law conservation of energy is always valid it never voilates. Please repost the question with more clarity.

Dec 19, 2014

#### A circular conducting loop of radius r moves through a uniform magnetic field of induction vector B with uniform velocity vector v. The res..



potential difference between A and B is VBr

Sanalkumar S

May 4, 2015

#### Which part of electromagnetic spectrum has largest penetrating power?



Gamma rays

Amarnathreddy M

Feb 1, 2014



Fagunithareja

Aug 10, 2013



Dec 19, 2014

#### In the situation described in figure, the polarity of capacitor is A) B positive with respect to A B) A p..



B)  A positive with respect to B.

By the movement of the magnet, current will be clockwise as seen from the right side of the loop. So plate A will be positive and B negative.

NextGurukul Guest User

Sep 27, 2017

#### Explain lenz law?



Lenz's law is named after the German scientist H. F. E. Lenz in 1834. Lenz's law states that when an emf is generated by a change in magnetic flux according to Faraday's Law, ...

Rithu

Feb 7, 2016

#### Explain eddy current



Eddy current is a localized electric current induced in a conductor by a varying magnetic field....

Filters