Insulation resistance, Physics

Assignment Help:

This is the virtue of a material resists flow of electric current. It should be as high as possible. When material is subjected to an electrical pressure then will always be a flow of current however extremely a small it is, as insulation resistance is never infinite. An insulator to which a voltage, V, is applied will have a small current I flow through it .The insulation resistance R is then given by:

                              R=V/I

Insulation resistance is of two types:

(A)Volume resistance

(B)Surface resistance

If a potential difference is applied across the faces A and B a current will flow. This current is likely to take path, straight through the material and around the material over the surface. The current that flow over the surface is denoted by Is. The possibility of current flowing over the surface of material is due to the presence of moisture or other atmospheric or surrounding impurities.


Related Discussions:- Insulation resistance

Young double slits experiment, sketch the setup abd show the angulare dista...

sketch the setup abd show the angulare distace between successive dark bands is----------

Capacitor construction, Capacitor have thin conducting plates (usually made...

Capacitor have thin conducting plates (usually made of metal) separated by a layer of dielectric, then stacked or rolled to form a compact device. Many types of capacitors are avai

Classes of magnetic materials: ferromagnetism, When you think of magnetic m...

When you think of magnetic materials, you possibly think of nickel, iron or magnetite. Distinct to paramagnetic materials, the atomic moments in these materials show very strong in

Explain synchronous condensers, Synchronous Condensers: A synchronous moto...

Synchronous Condensers: A synchronous motor takes a leading current when over-excited and thus behaves as a capacitor. An over-excited synchronous motor running on no load is call

The position-time graph for two joggers, The position-time graph for two jo...

The position-time graph for two joggers, A and B, is shown in the accompanying figure a. How far apart are the two runners at 10.0 min? 1.50 km b. At what time ar

Determine the north pole of a compass needle, The magnetic field of Earth r...

The magnetic field of Earth resembles the field of a bar magnet. The north pole of a compass needle, used for navigation, generally points toward the geographic north pole.

Write the applications of a capacitor, Q. Write the applications of a capac...

Q. Write the applications of a capacitor. Applications of capacitors. (i) They are utilized in the ignition system of automobile engines to eliminate sparking. (ii) They a

Types of bond: vander waals bond, VANDER WAALS BOND: A fourth type of b...

VANDER WAALS BOND: A fourth type of bonding, which does not involve a transfer or sharing of electrons, is known as the Vander walls bond. It forms in atoms or molecules that b

Nuclear decays, Nuclear Decays Uses a proper Monte Carlo engine to simu...

Nuclear Decays Uses a proper Monte Carlo engine to simulate real decays.The decay of 500 atoms of the fictional element Balonium.

What is its potential energy in joules, Assume a crane lifts a 900 kilogram...

Assume a crane lifts a 900 kilogram wrecking ball 12 meters above a concrete slab.  105,840 Joules of potential energy are kept in the wrecking ball.  Now the ball is dropp

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