Model No:SP-DCM-SL
Dielectric or electrical insulating materials are the substances in which electrostatic eld can persist for long times. When a dielectric is placed between the plates of a capacitor and the capacitor is charged, the electric eld between the plates polarizes the molecules of the dielectric. This produces concentration of charge on its surface that creates an electric field which is antiparallel to the original field (which has polarized the dielectric).
This reduces the electric potential difference between the plates. Considered in reverse, this means that, with a dielectric between the plates of a capacitor, it can hold a larger charge. The extent of this effect depends on the dipole polarizability of molecules of the dielectric, which in turn determines the dielectric constant of the material.
A cylindrical capacitor hasbeen used for liquid samples and different size parallel plate capacitors for solid samples
Setup Consists of the following:
Samples
Glass, Bakelite, Teflon, PZT Sample (Lead Titanate), Carbon Tetrachloride Liquid
Digital Capacitance Meter
This is a compact direct reading micro-controller based high resolution instrument for the measurement of capacitance of the sample.
Scope of Learning:
Technical Specifications:
Apparatus
Digital Capacitance meter
