1 microfarad is equal to
The microfarad (symbolized µF) is a unit of capacitance, equivalent to 0.000001 (10 to the -6th power) farad. The microfarad is a moderate unit of capacitance. In utility alternating-current (AC) and audio-frequency (AF) circuits, capacitors with values on the order of 1 µF or more are common.
The polarized dielectric is equivalent to
The polarization is defined by the dipole moment per unit volume, so the total dipole moment in the volume is: This is equivalent to two charges, each equal to , separated by distance .
The dielectric Constant of a metal is
Which of the following statements is not true for polar molecules?
The extent of polarization depends on
The extent of polarization of dielectrics depends on the relative strength of two mutually opposite factors - the dipole potential energy tending to align the dipole with the external field and thermal energy tending to disrupt the alignment.
A uniformly polarized dielectric amounts to induced ______ charge density but no ______charge density.
As charges are separated on the surface of the dielectric but not in its interior volume.
When a conductor is placed in an electric field; its free charge carriers adjust itself in order to oppose the electric field. This happen until
The dipole moment per unit volume is called
The electric dipole moment per unit volume is called polarization or polarization density (vector p).
It is always directed from negative charge to positive charge.
If there are N atoms per unit volume than
vector p = N (vector p)
where p is the electric dipole moment of individual atom.
The displacement of charges inside the dielectric stops when
The electric field inside a dielectric decreases, when it is placed in an external electric field. This happens due to
The net electric field inside a dielectric decreases due to polarization. The external electric field polarizes the dielectric and an electric field is produced due to this polarization.