A capacitor is composed of 2 plates separated by a sheet of insulating material 2mm thick and of relative permittivity 3. The distance between the plates is increased to allow the insertion of a second sheet of 3mm thick and of relative permittivity εr . If the equivalent capacitance is one-half of the original capacitance, find the value of εr.
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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 is composed of 2 plates separated by a sheet of insulating material 2mm thick and of relative
permittivity 3. The distance between the plates is increased to allow the insertion of a second sheet of 3mm
thick and of relative permittivity εr . If the equivalent capacitance is one-half of the original capacitance, find
the value of εr.
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