ASK YOUR TEACHER PRACTICE ANOTHER A parallel plate capacitor has plates of area A = 5.00 ✕ 10−2 m2 separated by distance d = 1.47 ✕ 10−4 m. (The permittivity of free space is ?0 = 8.85 ✕ 10−12 C2/(N · m2).) HINT (a) Calculate the capacitance (in F) if the space between the plates is filled with air. F What is the capacitance (in F) if the space is filled half with air and half with a dielectric of constant ? = 2.70 as in figure (a), and figure (b)? (Hint: One of the capacitors is a parallel combination and the other is a series combination.) Two figures each show a horizontally-oriented parallel-plate capacitor partially filled with a dielectric material with dielectric constant ?. The other half is filled with air. Each plate has area A and a distance d separates the plates. Figure (a): The dielectric material fills the top half of the space between the plates. Figure (b): The dielectric material fills the right half of the space between the plates. (b) figure (a) F (c) figure (b) F

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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.