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 capacitor with capacitance C is connected to a power supply that maintains the voltage at some
value V0. This stores an energy of U0 in the capacitor.
What is the energy U0 in terms of C and V0?
How much energy would be stored in the capacitor if the voltage were raised to 3V0? Give your
answer in terms of U0.
Given:
Capacitance of a capacitor is
Voltage is
Energy stored by the capacitor is
Find:
(a) Energy in terms of and
(b) Energy in terms of when voltage is
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