What is hystersis, Physics

The lagging of an effect behind its cause; especially the phenomenon in which the magnetic induction of a ferromagnetic material lags behind the changing magnetic field.

Posted Date: 3/15/2013 12:46:06 AM | Location : United States





Hysteresis is the dependence of a system not only on its current environment but also on its past environment. This dependence arises due to the system can be in more than one internal state. To predict its future development, either its internal state or its history must be known.

If a given input alternately increases & decreases, the output tends to form a loop as in the figure. Though, loops may also occur because of a dynamic lag among input and output. Often, this effect is also referred to as hysteresis, or rate-dependent hysteresis.

In natural systems hysteresis is often associated with irreversible thermodynamic change. Many artificial systems are designed to have hysteresis: for instance, in thermostats and Schmitt triggers, hysteresis is formed by positive feedback to avoid unwanted rapid switching. Hysteresis has been identified in many other fields, with economics and biology.

Posted by | Posted Date: 3/15/2013 12:50:22 AM


Related Discussions:- What is hystersis, Assignment Help, Ask Question on What is hystersis, Get Answer, Expert's Help, What is hystersis Discussions

Write discussion on What is hystersis
Your posts are moderated
Related Questions
A body which gets its real configuration immediately and completely after the removal of deforming force from it, is called as perfectly elastic body. Phosphor bronze and quartz ar

There is more number of substances in the universe than 109 elements. Most matter we run into on a day-to-day basis is composed of compounds-substances in which two or more element

Thomson experiment; Kelvin effect (Sir W. Thomson [later Lord Kelvin]): While an electric current pass through a conductor whose ends are maintained at distinct temperatures,

During a space launch, an astronaut typically undergoes an acceleration of 3 gs, which means he experiences an acceleration that is three times that of gravity alone. What wou

Maxwell''s equations are a set of partial differential equations that, together with the Lorentz force law, form the foundation of classical electrodynamics, electric circuits and

FRAME OF REFERENCE:  "A set of reference axis needed to locate the position of an object in space is known as a frame of reference"

Q. What are the changes that take place at the superconducting transition temperature? At the transition temperature the subsequent changes are observed (i) The electrical res


And then did he sit up.IS THIS A SENTENCE OR A QUESTION

Will there be any change in hz of sound if two vibrating body has the similar hz Ans) Yes it depends on the path difference among them... Like in destructive inteference u