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

Help, #questionyour dog is running around the grass in your back yard. He u...

#questionyour dog is running around the grass in your back yard. He undergoes successive displacements 3.50 m south, 8.20 m northeast, and 15.0 m west. What is the resultant displa

What are the safety to be inspected on rotary junction box, What are the sa...

What are the safety terms to be inspected on Rotary Junction Box? Ans: Safety terms to be checked on rotary junction box are full tightness of all terminal connections, main

Evaluate kinetic energy in oscillation, How many times the kinetic energy r...

How many times the kinetic energy reach at minimum and maximum point during one oscillation?

Hello, what is the methods of dealing with cultural uncertainty is the leas...

what is the methods of dealing with cultural uncertainty is the least successful?

Explain new terms for describing motion, Explain New Terms for Describing M...

Explain New Terms for Describing Motion As mentioned in the last chapter, the mass of a cannonball is a measure of the amount of matter (in kilograms) that would balance agains

The quantum no having non integral value, the quantum no having non integra...

the quantum no having non integral value is ? what does it designate

Explain static capacitors, Static Capacitors: The power factor can be impr...

Static Capacitors: The power factor can be improved by between capacitors in parallel with the equipment operating at lagging power factor. The capacitor draws a leading current a

Explain the diagramming waves, Explain the Diagramming Waves? There are...

Explain the Diagramming Waves? There are two ways that waves can be indicated in a two-dimensional diagram. Parallel lines can be drawn that are meant to show the position of

Properties of laser, Properties of laser: Lasers have applications in ...

Properties of laser: Lasers have applications in various disciplines of science and technology. They also find applications in industry, medicine and defence and space science

If two soap bubbles of different radii are connected by tube, If two soap b...

If two soap bubbles of different radii are connected by a tube then, what happen? Ans) When these bubbles are joined through tube..the smaller bubble(with more pressure) gets its

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