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Amarnathreddy M
Feb 1, 2014
Distinguish between self-induction and mutual induction.
Letusknowwhy
Apr 23, 2014
What is Lenz's Law
Mohammad Subhan
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?
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?
Adarsh Udayan
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..
Sanalkumar S
May 4, 2015
Which part of electromagnetic spectrum has largest penetrating power?
Gamma rays
Amarnathreddy M
Feb 1, 2014
Distinguish between self-induction and mutual induction.
Fagunithareja
Aug 10, 2013
a transformer has 500 primary turns 10 secondary turns. if the secondaryt has resistive load of 15 ohm the currents in the primary secondary respectively are
a transformer has 500 primary turns 10 secondary turns. if the secondaryt has resistive load of 15 ohm the currents in the primary secondary respectively are
Gajender
Dec 21, 2014
State Faradays laws of Electrolysis.
Adarsh Udayan
Dec 19, 2014
In the situation described in figure, the polarity of capacitor is A) B positive with respect to A B) A p..
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, ...
Amarnathreddy M
Feb 1, 2014
Distinguish between self-induction and mutual induction.
Letusknowwhy
Apr 23, 2014
What is Lenz's Law
Mohammad Subhan
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?
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?
Adarsh Udayan
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..
Sanalkumar S
May 4, 2015
Which part of electromagnetic spectrum has largest penetrating power?
Gamma rays
Amarnathreddy M
Feb 1, 2014
Distinguish between self-induction and mutual induction.
Fagunithareja
Aug 10, 2013
a transformer has 500 primary turns 10 secondary turns. if the secondaryt has resistive load of 15 ohm the currents in the primary secondary respectively are
a transformer has 500 primary turns 10 secondary turns. if the secondaryt has resistive load of 15 ohm the currents in the primary secondary respectively are
Gajender
Dec 21, 2014
State Faradays laws of Electrolysis.
Adarsh Udayan
Dec 19, 2014
In the situation described in figure, the polarity of capacitor is A) B positive with respect to A B) A p..
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, ...