What is polarisation, Electrical Engineering

Assignment Help:

What is polarisation? Explain.

While a dielectric material is related an electric field the dipoles of the material find oriented in a certain direction under the effect of the electric field. Then material is as polarized and this phenomenon as polarization. When non polar materials the atoms or molecules are get polarized and make dipole moments at atomic level. The particular dipoles get oriented in the direction of field. The dipole moment (p) per unit volume is termed as polarization (P). The dipole moment is proportional to local electric field and the constant of proportionality is termed as polarisability. There are three forms of polarization/polarisability.

  • Electronic or atomic polarization
  • Oriental or dipole polarization
  • Ionic polarization

Related Discussions:- What is polarisation

Self inductance , Self Inductance If a current is passed through a co...

Self Inductance If a current is passed through a coil, it creates a flux within the coil. Any attempt to change this flux will create a back emf that acts to oppose the chang

Logically and the contents of memory, Logically AND the contents of memory ...

Logically AND the contents of memory Contents of memory  location,  whose address is specified by HL register pair are logically AND with the  contents  of the accumulator. The

Explain about dial pulses, Q. Explain about Dial Pulses? Dial pulsing (...

Q. Explain about Dial Pulses? Dial pulsing (sometimes known as rotary dial pulsing) is the method basically used to transfer digits from a telephone set to the local switch. Pu

General purpose registers, General  Purpose  Registers Registers B, C...

General  Purpose  Registers Registers B, C ,D, E H , and L   are 8 bit  general  purpose  registers. These  registers store  8 bit  data  temporarily  for processing. Some

Calibration and testing of energy meters, Calibration and Testing of Energy...

Calibration and Testing of Energy Meters and Meter Laboratory Energy meters form a vital instrument of revenue realization for the distribution utilities. Based on the meter r

Power machines., name two types of axial flow turbines

name two types of axial flow turbines

Compound motor , Compound motor It is possible to arrange for part of...

Compound motor It is possible to arrange for part of the field  coil to be in series with the armature and part in parallel   This gives rise to a motor with a mix

Show step-motor control system, Q. Show Step-motor control system? Figu...

Q. Show Step-motor control system? Figure illustrates a system in which the prime mover used in the disk-drive system is a step motor driven by pulse commands. In response to e

Calculate the cross-sectional area, Calculate the cross-sectional area, in...

Calculate the cross-sectional area, in mm 2 , of a piece of aluminium wire 100 m long and having a resistance of 2Ω. Take the resistivity of aluminium as 0.03 x 10-6 Ωm.

Energy band diagram, Sketch the Fermi-Dirac distribution function, F(E), al...

Sketch the Fermi-Dirac distribution function, F(E), alongside the energy band diagram for an n-type semiconductor, indicating the position of the Fermi level, EF, and the donor lev

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