dielectric constant of different materials experiment

To start with, the surface of the capacitor plates is determined by means of their radius. The experiment is carried out in two parts: 1. In the first part, the distance between the plates of the plate capacitor is varied under constant voltage, and the charge on the capacitor plates is measured.

The goal of this experiment is to investigate the dielectric constant in different materials. 1. The relation between charge Q and voltage U is to be measured using a plate capacitor. 2. The electric constant is to be determined from the relation measured under point 1. 3.

Experiment no.: E6 Name of the Experiment: Determination of dielectric constant of materials using parallel plate capacitor Theory: The electric flux through a closed surface area in vacuum is given by Gauss’s law of electrostatics: ∯ ̅ ̅ (1) Where ̅ is the electric field intensity, Q is the charge enclosed by the closed surface A, 0

Experiment Name: Dielectric constant of different materials Objective: 1. The relation between charge Q and voltage U is to be observed using a plate capacitor. The electric constant ε 0 is to be determined from the relation between charge Q and voltage U. 2. Determination of dielectric constant of the dielectric (plastic) media is introduced ...

The electric constant is determined by measuring the charge of a plate capacitor to which a voltage is applied. The dielectric constant is determined in the same way, with plastic or glass filling the space between the plates.

Dielectric constant, also called relative permittivity, property of an electrical insulating material (a dielectric) equal to the ratio of the capacitance of a capacitor filled with the dielectric material and without the dielectric material.

The dielectric constant ( ε) of a dielectric material can be defined as the ratio of the capacitance using that material as the dielectric in a capacitor to the capacitance using a vacuum as the dielectric.

However, this experiment consistently results in a nonlinear relation between capacitance and inverse dielectric thickness and yields dielectric constants that are much too low pre-dominantly because of air trapped between the layers of the dielectric. Many instructors choose paper as the dielectric material.

Measurement of dielectric properties involves measurements of the complex relative permittivity (:r) and complex relative permeability (<r) of the materials. A complex dielectric permittivity consists of a real part and an imaginary part.

The method for determination of dielectric constants of liquids consists in the successive measurement of capacitance, first in a vacuum, and then when the capacitor is immersed in the liquid under investigation.