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Energy Stored In A Capacitor Class 12 Physics Electrostatic Potential And Capacitance

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Dielectric And Polarization

#8. Dielectric And Polarization What are dielectrics? Dielectrics are non-conducting substances or insulators. Dielectrics can be easily polarized when an electric field is applied to it. Thus their behavior in an electric field is entirely different from that of conductors.  Electric Field Inside A Dielectric  Consider a plate of conductor a positively charged one & another plate of a conductor which is negatively charged. So, in between them there exist electric field Eout from positive plate to negative plate. Now we are going to place a dielectric inside this electric field. under the influence of this electric field, the dielectric get polarised (polarisation means giving direction). Inside the dielectric there exist positively charged protons and negatively charged electrons.  The positively charged protons will move towards the negative plate and negatively charged electrons move towards the positive plate. As the result of this alignment of charges, an interna...
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Class 12 Physics Chapter 1 Electric Charges and Fields Notes

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