Part A: When the electric field between the plates is 77 % of the dielectric strength, what is the energy density of the stored energy? u=__ Part B: When the capacitor is connected to a battery with voltage 500.0 V, the electric field between the plates is 77 % of the dielectric strength. What is the area of each plate if the capacitor stores 0.250 mJ of energy under these conditions? A=__
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.
Polystyrene has dielectric constant 2.6 and dielectric strength 2.0x107 V/m. A piece of polystyrene is used as a dielectric in a parallel-plate capacitor, filling the volume between the plates.
Express your answer with the appropriate units.
Part A: When the electric field between the plates is 77 % of the dielectric strength, what is the energy density of the stored energy? u=__
Part B: When the capacitor is connected to a battery with voltage 500.0 V, the electric field between the plates is 77 % of the dielectric strength. What is the area of each plate if the capacitor stores 0.250 mJ of energy under these conditions? A=__
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