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

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. Hence they form like pairs of magnet, which opposes the relative motion. Hence 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.

Hence Lenz modified Faradays Equation as 


where E=induced emf, Φ=magnetic flux associated with it

Negative Sign indicates that the Emf is of opposite polarity than the Magnetic Flux


Posted Date: 3/7/2013 4:52:25 AM | Location : United States

Related Discussions:- How can lenz law explain law of conservation of energy??, Assignment Help, Ask Question on How can lenz law explain law of conservation of energy??, Get Answer, Expert's Help, How can lenz law explain law of conservation of energy?? Discussions

Write discussion on How can lenz law explain law of conservation of energy??
Your posts are moderated
Related Questions
Explain about the working of functional units in ultrasonic pulse echo system. The master timer by the electronic clock triggers the signal pulse generator at ordinary interval

The substances which can be stretched to big values of strain are known as elastomers. e.g. elastic tissue of aorta, the main artery carrying blood from the heart.

Work: In its technical sense, work is the product of force and distance, and work is done only when a force causes movement.  We can see this by the formula: Work = Force x

The digital circuit that can be examined with the help of Boolean algebra is known as logic circuit or logic gate. A logic circuit has two or more inputs but only one output. Th

A uniform spring of length 2m and mass 200gm is under a tension of 800N. Find the speed of transverse wave in the string.

A rectangular rosette is mounted on a test structure as shown, loads are applied, and the following strains are measured by strain gage elements 1, 2, and 3: ε 1 = 1500 μm/ m ε

Q. What is Coulomb? One Coulomb is describe as the quantity of charge which when placed at a distance of 1 metre in air or vacuum from an equal and similar charge experiences a

Cart and The Brick Collisions among objects are governed through laws of momentum and energy. While a collision occurs in an isolated system, a total momentum of the system of

A person is making a ray tracing diagram to determine the characteristics of an image formed by a converging lens. Consequently far the person has gotten as far as drawing one of t

In utilizing Kirchoff's Laws to analyze a circuit a student correctly calculates a negative value for one of the currents in the circuit. What does the negative sign signify?