Can someone please explain Lenz\'s law to me in layman\'s terms... like I unders
ID: 1554614 • Letter: C
Question
Can someone please explain Lenz's law to me in layman's terms... like I understand it is supposed to OPPOSE the induced current but what makes it turn a certain direction?
10) A coil lies flat on a tabletop in a region where the magnetic field vector points straight up The magnetic field vanishes suddenly. When viewed from above, what is the sense of the induced current in this coil as the field fades? A) The induced current flows counterclockwise. B) The induced current flows clockwise C) There is no induced current in this coil. D) The current flows clockwise initially, and then it flows counterclockwise before stopping. Answer: A Var: 1 807 Copyright 2015 Pearson Education, Inc. 11) A coil lies flat on a level tabletop in a region where the magnetic field vector points straight up. The magnetic field suddenly grows stronger. When viewed from above, what is the direction of the induced current in this coil as the field increases? A) counterclockwise B) clockwise C clockwise initially, then counterclockwise before stopping D) There is no induced current in this coil. Answer: B Var: 1 12) A coil lies flat on a horizontal tabletop in a region where the magnetic field straight down. The magnetic field disappears suddenly. When viewed from above, what is the direction of the induced current in this coil as the field disappears? A) counterclockwise B) clockwise C clockwise initially, then counterclockwise before stopping D) There is no induced current in this coil. Answer: B Var: 1Explanation / Answer
Understand the Lenz's says the induced current(as per Faraday's Laws) will have such a direction to oppose the cause that is producing it. Its a kind of energy conservation law in magnetism and electricty. Lets say for example North Pole of coil is coming close(down) to a loop kept in the horizontal plane, So the magnetic flux is increasing and pointing downards, So there is change of flux so as per faraday;s laws there is current in the loop ,That current will flow in such a way to oppose that north pole coming down, So the induced current in the loop will flow in such a way as to have its North Pole upwards. So the current will be in anticlock wise sense, So the Lenz's law is mainly used to find out the direction of induced current.