Materials which have no free charges are called
Dielectrics
Transistors
Polarisers
When a dielectric is placed in an electric field, there is a displacement of the electron cloud relative to the nucleus(the inner circle). This refers to
Electric polarisation
Ionic polarisation
Dipolar polarisation
Macrostructural polarisation
results from separation of +ve and –ve ions which are held together by ionic bonds
results when free polar molecules are subjected to an electrical field, they orientate themselves along the field
results when electrical field is applied to a large structure i.e.a cell, the free ions etc
When free polar molecules are subjected to an electrical field, they orientate themselves along the field this is known as
Hyperpolarisation
Macro structural polarisation
electrical field is applied to a large structure i.e.a cell, the free ions etc
on surfaces with double electrical layer when an external electrical field causes absorptionand diffusion on opposite sides of the ions in the external medium
when a dielectric is placed in an electric field, there is a displacement of the electron cloud relative to the nucleus(the inner circle).
Relaxation time is (10^-16)-(10^-14) for
Dipolar Polarisation
Superficial polarisation
Relaxation time is (10^-3)-(1 sec) for
Superficial potential
Electric Potential
Ionic Potential
The measure of the opposition that a circuit presents to a current when a voltage is applied
Electric Impedence
Electric Resistance
Ohms Resistances
