Concept Of Resistance

The concept of resistance is analogous to the friction involved in the mechanical motion.

Concept of resistance. The concept of resistance is not always easy to understand because it is not possible to visibly see the quantities involved. The roc is a concept that will assist nordic and baltic countries to conduct resistance operations in the event of an invasion or occupation by russian military forces. How to use resistance in a sentence. A short circuit is an electric circuit offering little or no resistance to the flow of current.

There are numbers of free electrons moving randomly in the crystal structure of a metallic substance. The majority of equations and laws for analyzing circuits can be derived directly from ohm s law. The standard unit of resistance is the ohm sometimes written out as a word and sometimes symbolized by the uppercase greek letter omega. In any engineering competitive exam syllabus is started from basic concepts.

When an electric current of one ampere passes through a component across which a potential difference voltage of one volt. Special operations command europe has working with nato and other allies developed the resistance operating concept roc that will contribute to deterring and resisting aggression in eastern europe. Short circuits are dangerous with high voltage power sources because the high currents encountered can cause large amounts of heat energy to be released. Now you should understand the concepts of voltage current resistance and how the three are related.

Resistance in psychoanalysis refers to oppositional behavior when an individual s unconscious defenses of the ego are threatened by an external source. Junior engineer electrical exam also includes basic concepts as its first topic and here i will explain about resistance from the basic concepts. Resistance is the measure of opposition to electric current. To understand the matter let us take examples of metallic substances.

Sigmund freud the founder of psychoanalytic theory developed his concept of resistance as he worked with patients who suddenly developed uncooperative behaviors during sessions of talk therapy. Where v is voltage i is current and r is resistance. Voltage current and resistance itself are all rather invisible quantities tot he naked eye although they can be detected and measured in a variety of ways. Higher the availability of the free electrons lesser will be the opposition to the flow of current.

Resistance definition is an act or instance of resisting.