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. What is the potential energy stored in the electric field
of a 200-μF capacitor when it is charged to a voltage of
2400 V?
b. What is the energy stored on a 25-μF capacitor when
the charge on each plate is 2400 μC? What is the voltage
across the capacitor?
c. How much work is required to charge a capacitor to a potential difference of 30kv if 800 μC is on each place?
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