Dielectric Constant Of Water
Water constitutes about 70% of earth. Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.
Electrostatic Potential and Capacitance
An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.
a) Define capacitance with its unit. What are the possible ways to increase the capacitance of any parallel-plate capacitors?
(b) An air field parallel-plate capacitor has a plate spacing of 1.50 mm and an electric potential difference of 65.0 V. (I) What is the electric field between the plates? (II) Find the surface charge density of each plate and (III) Calculate the total charge on each plate of dimensions 4.00 cm x 5.00 cm.
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