Volume resistance and surface resistance, Physics

Assignment Help:

Volume resistance: The resistance provided to the current which flows through the material is called volume resistance. For a cube of unit dimensions this is called volume resistivity. This resistivity is  the flow of current resistance offered to the flow of current through the body of the material, and is expressed in the same way as the resistivity of a conducting material. In ohm-m. Thus the volume resistance of an insulating material may be expressed as

            R=ρvd/a

Where ρV IS called the volume resistivity, and is expressed in terms of ohm-m. "d" is length of  the current path through the material in meters, "a" is the cross section area on the current path in square-m.

Surface resistance: The resistance offered by to current I which flows over the surface of insulating material is called surface material. Surface resistivity depends upon the humidity. 


Related Discussions:- Volume resistance and surface resistance

What is common end in fiber, What is common end? The fiber or fibers sh...

What is common end? The fiber or fibers should be connected to the illuminator. Particularly in the case of a number of fibers, these have to be bunched together and contain se

Dimension, the force of a capillarity in plant is given by surface tension ...

the force of a capillarity in plant is given by surface tension =density*r*g*h/2.is the equation correct or not

Experiment of laboratory tweezers, Laboratory tweezers Very serviceable...

Laboratory tweezers Very serviceable tweezers can be made from lengths of flexible strap iron used to place around boxes and creates for shipment. The tweezers shown are abo

Refractive index of liquids using prism spectrometer, explain the refractiv...

explain the refractive index of the transparent liquid using prism spectrometer?

Determine amount of work done on a machine, A certain machine exerts a forc...

A certain machine exerts a force of 200 newtons on a box whose mass is 30 kilograms.  The machine moves the box a distance of 20 meters along a horizontal floor. What amount of wor

Newtons law of universal gravitation, Newton's law of universal gravitation...

Newton's law of universal gravitation (Sir I. Newton): Two bodies attract  to each other with equal & opposite forces; the magnitude of this force is proportional to the produ

Mechanics, to derive expreation for magnitude & direction for the resultant...

to derive expreation for magnitude & direction for the resultant which two are acting at a point

Physics, the magnitude and direction of acceleration of body both are const...

the magnitude and direction of acceleration of body both are constant will the body moves in straight line

Caluclate the work done by machine, A certain machine exerts a force of 200...

A certain machine exerts a force of 200 Newton on a box whose masses 30 kilograms.  The machine moves the box a distance of 20 meters with a horizontal floor. What amount o

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd